| from __future__ import annotations |
|
|
| import os |
| ENV = {"TF_FORCE_UNIFIED_MEMORY":"1", "XLA_PYTHON_CLIENT_MEM_FRACTION":"4.0"} |
| for k,v in ENV.items(): |
| if k not in os.environ: os.environ[k] = v |
|
|
| import warnings |
| from Bio import BiopythonDeprecationWarning |
| warnings.simplefilter(action='ignore', category=BiopythonDeprecationWarning) |
|
|
| import json |
| hasOrjson = False |
| try: |
| import orjson |
| hasOrjson = True |
| except ImportError: |
| pass |
| import logging |
| import math |
| import sys |
| import time |
| import zipfile |
| import shutil |
| import pickle |
| import gzip |
|
|
| from argparse import ArgumentParser, ArgumentDefaultsHelpFormatter |
| from pathlib import Path |
| from typing import Any, Callable, Dict, List, Optional, Tuple, Union, TYPE_CHECKING |
| from io import StringIO |
|
|
| import importlib_metadata |
| import numpy as np |
|
|
| try: |
| import alphafold |
| except ModuleNotFoundError: |
| raise RuntimeError( |
| "\n\nalphafold is not installed. Please run `pip install colabfold[alphafold]`\n" |
| ) |
|
|
| from alphafold.common import protein, residue_constants |
|
|
| |
| |
| if TYPE_CHECKING: |
| import haiku |
| from alphafold.model import model |
| from numpy import ndarray |
|
|
| from alphafold.common.protein import Protein |
| from alphafold.data import ( |
| feature_processing, |
| msa_pairing, |
| pipeline, |
| pipeline_multimer, |
| templates, |
| ) |
| from alphafold.data.tools import hhsearch |
| from colabfold.citations import write_bibtex |
| from colabfold.download import default_data_dir, download_alphafold_params |
| from colabfold.utils import ( |
| ACCEPT_DEFAULT_TERMS, |
| DEFAULT_API_SERVER, |
| NO_GPU_FOUND, |
| CIF_REVISION_DATE, |
| get_commit, |
| setup_logging, |
| CFMMCIFIO, |
| AF3Utils, |
| ) |
| from colabfold.input import ( |
| pair_msa, |
| msa_to_str, |
| get_queries, |
| safe_filename, |
| modified_mapping, |
| pdb_to_string, |
| ) |
| from colabfold.relax import relax_me |
| from colabfold.alphafold import extra_ptm |
|
|
| from Bio.PDB import MMCIFParser, PDBParser, MMCIF2Dict |
| from Bio.PDB.PDBIO import Select |
|
|
| |
| logger = logging.getLogger(__name__) |
| from jax import local_devices |
|
|
| |
| |
| logging.getLogger('jax._src.xla_bridge').addFilter(lambda _: False) |
| logging.getLogger('jax._src.lib.xla_bridge').addFilter(lambda _: False) |
|
|
| def mk_mock_template( |
| query_sequence: Union[List[str], str], num_temp: int = 1 |
| ) -> Dict[str, Any]: |
| ln = ( |
| len(query_sequence) |
| if isinstance(query_sequence, str) |
| else sum(len(s) for s in query_sequence) |
| ) |
| output_templates_sequence = "A" * ln |
| output_confidence_scores = np.full(ln, 1.0) |
|
|
| templates_all_atom_positions = np.zeros( |
| (ln, templates.residue_constants.atom_type_num, 3) |
| ) |
| templates_all_atom_masks = np.zeros((ln, templates.residue_constants.atom_type_num)) |
| templates_aatype = templates.residue_constants.sequence_to_onehot( |
| output_templates_sequence, templates.residue_constants.HHBLITS_AA_TO_ID |
| ) |
| template_features = { |
| "template_all_atom_positions": np.tile( |
| templates_all_atom_positions[None], [num_temp, 1, 1, 1] |
| ), |
| "template_all_atom_masks": np.tile( |
| templates_all_atom_masks[None], [num_temp, 1, 1] |
| ), |
| "template_sequence": [f"none".encode()] * num_temp, |
| "template_aatype": np.tile(np.array(templates_aatype)[None], [num_temp, 1, 1]), |
| "template_confidence_scores": np.tile( |
| output_confidence_scores[None], [num_temp, 1] |
| ), |
| "template_domain_names": [f"none".encode()] * num_temp, |
| "template_release_date": [f"none".encode()] * num_temp, |
| "template_sum_probs": np.zeros([num_temp], dtype=np.float32), |
| } |
| return template_features |
|
|
| def mk_template( |
| a3m_lines: str, |
| template_path: str, |
| query_sequence: str, |
| max_template_date="2100-01-01", |
| max_hits=20, |
| ) -> Dict[str, Any]: |
| template_featurizer = templates.HhsearchHitFeaturizer( |
| mmcif_dir=template_path, |
| max_template_date=max_template_date, |
| max_hits=max_hits, |
| kalign_binary_path="kalign", |
| release_dates_path=None, |
| obsolete_pdbs_path=None, |
| ) |
|
|
| hhsearch_pdb70_runner = hhsearch.HHSearch( |
| binary_path="hhsearch", databases=[f"{template_path}/pdb70"] |
| ) |
|
|
| hhsearch_result = hhsearch_pdb70_runner.query(a3m_lines) |
| hhsearch_hits = pipeline.parsers.parse_hhr(hhsearch_result) |
| templates_result = template_featurizer.get_templates( |
| query_sequence=query_sequence, hits=hhsearch_hits |
| ) |
| return dict(templates_result.features) |
|
|
| def validate_and_fix_mmcif(cif_file: Path): |
| """validate presence of _entity_poly_seq in cif file and add revision_date if missing""" |
| |
| cif_dict = MMCIF2Dict.MMCIF2Dict(cif_file) |
| required = [ |
| "_chem_comp.id", |
| "_chem_comp.type", |
| "_struct_asym.id", |
| "_struct_asym.entity_id", |
| "_entity_poly_seq.mon_id", |
| ] |
| for r in required: |
| if r not in cif_dict: |
| raise ValueError(f"mmCIF file {cif_file} is missing required field {r}.") |
| if "_pdbx_audit_revision_history.revision_date" not in cif_dict: |
| logger.info( |
| f"Adding missing field revision_date to {cif_file}. Backing up original file to {cif_file}.bak." |
| ) |
| shutil.copy2(cif_file, str(cif_file) + ".bak") |
| with open(cif_file, "a") as f: |
| f.write(CIF_REVISION_DATE) |
|
|
| class ReplaceOrRemoveHetatmSelect(Select): |
| def accept_residue(self, residue): |
| hetfield, _, _ = residue.get_id() |
| if hetfield != " ": |
| if residue.resname in modified_mapping: |
| |
| residue.resname = modified_mapping[residue.resname] |
| |
| residue._id = (" ", residue._id[1], " ") |
| t = residue.full_id |
| residue.full_id = (t[0], t[1], t[2], residue._id) |
| return 1 |
| return 0 |
| else: |
| return 1 |
|
|
| def convert_pdb_to_mmcif(pdb_file: Path): |
| """convert existing pdb files into mmcif with the required poly_seq and revision_date""" |
| i = pdb_file.stem |
| cif_file = pdb_file.parent.joinpath(f"{i}.cif") |
| if cif_file.is_file(): |
| return |
| parser = PDBParser(QUIET=True) |
| structure = parser.get_structure(i, pdb_file) |
| cif_io = CFMMCIFIO() |
| cif_io.set_structure(structure) |
| cif_io.save(str(cif_file), ReplaceOrRemoveHetatmSelect()) |
|
|
| def mk_hhsearch_single_entry_db(cif_file: Path, dbdir_cache_path: str): |
| dbdir = Path(dbdir_cache_path) |
| dbdir.mkdir(parents=True, exist_ok=True) |
| tmp_cif_path = str(dbdir_cache_path) + "/1dmy.cif" |
| shutil.copy2(cif_file, tmp_cif_path) |
| |
| templates._read_file.cache_clear() |
| cif_file = Path(tmp_cif_path) |
| pdb70_db_files = dbdir.glob("pdb70*") |
| for f in pdb70_db_files: |
| os.remove(f) |
|
|
| with open(dbdir.joinpath("pdb70_a3m.ffdata"), "w") as a3m, open( |
| dbdir.joinpath("pdb70_cs219.ffindex"), "w" |
| ) as cs219_index, open( |
| dbdir.joinpath("pdb70_a3m.ffindex"), "w" |
| ) as a3m_index, open( |
| dbdir.joinpath("pdb70_cs219.ffdata"), "w" |
| ) as cs219: |
| n = 1000000 |
| index_offset = 0 |
| with open(cif_file) as f: |
| cif_string = f.read() |
| cif_fh = StringIO(cif_string) |
| parser = MMCIFParser(QUIET=True) |
| structure = parser.get_structure("none", cif_fh) |
| models = list(structure.get_models()) |
| if len(models) != 1: |
| logger.warning(f"WARNING: Found {len(models)} models in {cif_file}. The first model will be used as a template.", ) |
| |
| |
| |
| model = models[0] |
| for chain in model: |
| amino_acid_res = [] |
| for res in chain: |
| if res.id[2] != " ": |
| logger.warning(f"WARNING: Found insertion code at chain {chain.id} and residue index {res.id[1]} of {cif_file}. " |
| "This file cannot be used as a template.") |
| continue |
| |
| |
| |
| |
| amino_acid_res.append( |
| residue_constants.restype_3to1.get(res.resname, "X") |
| ) |
|
|
| protein_str = "".join(amino_acid_res) |
| a3m_str = f">{cif_file.stem}_{chain.id}\n{protein_str}\n\0" |
| a3m_str_len = len(a3m_str) |
| a3m_index.write(f"{n}\t{index_offset}\t{a3m_str_len}\n") |
| cs219_index.write(f"{n}\t{index_offset}\t{len(protein_str)}\n") |
| index_offset += a3m_str_len |
| a3m.write(a3m_str) |
| cs219.write("\n\0") |
| n += 1 |
|
|
| def mk_hhsearch_db(template_dir: str): |
| template_path = Path(template_dir) |
|
|
| cif_files = template_path.glob("*.cif") |
| for cif_file in cif_files: |
| validate_and_fix_mmcif(cif_file) |
|
|
| pdb_files = template_path.glob("*.pdb") |
| for pdb_file in pdb_files: |
| convert_pdb_to_mmcif(pdb_file) |
|
|
| pdb70_db_files = template_path.glob("pdb70*") |
| for f in pdb70_db_files: |
| os.remove(f) |
|
|
| with open(template_path.joinpath("pdb70_a3m.ffdata"), "w") as a3m, open( |
| template_path.joinpath("pdb70_cs219.ffindex"), "w" |
| ) as cs219_index, open( |
| template_path.joinpath("pdb70_a3m.ffindex"), "w" |
| ) as a3m_index, open( |
| template_path.joinpath("pdb70_cs219.ffdata"), "w" |
| ) as cs219: |
| n = 1000000 |
| index_offset = 0 |
| cif_files = template_path.glob("*.cif") |
| for cif_file in cif_files: |
| with open(cif_file) as f: |
| cif_string = f.read() |
| cif_fh = StringIO(cif_string) |
| parser = MMCIFParser(QUIET=True) |
| structure = parser.get_structure("none", cif_fh) |
| models = list(structure.get_models()) |
| if len(models) != 1: |
| logger.warning(f"WARNING: Found {len(models)} models in {cif_file}. The first model will be used as a template.", ) |
| |
| |
| |
| model = models[0] |
| for chain in model: |
| amino_acid_res = [] |
| for res in chain: |
| if res.id[2] != " ": |
| logger.warning(f"WARNING: Found insertion code at chain {chain.id} and residue index {res.id[1]} of {cif_file}. " |
| "This file cannot be used as a template.") |
| continue |
| |
| |
| |
| |
| amino_acid_res.append( |
| residue_constants.restype_3to1.get(res.resname, "X") |
| ) |
|
|
| protein_str = "".join(amino_acid_res) |
| a3m_str = f">{cif_file.stem}_{chain.id}\n{protein_str}\n\0" |
| a3m_str_len = len(a3m_str) |
| a3m_index.write(f"{n}\t{index_offset}\t{a3m_str_len}\n") |
| cs219_index.write(f"{n}\t{index_offset}\t{len(protein_str)}\n") |
| index_offset += a3m_str_len |
| a3m.write(a3m_str) |
| cs219.write("\n\0") |
| n += 1 |
|
|
| def pad_input( |
| input_features: model.features.FeatureDict, |
| model_runner: model.RunModel, |
| model_name: str, |
| pad_len: int, |
| use_templates: bool, |
| ) -> model.features.FeatureDict: |
| from colabfold.alphafold.msa import make_fixed_size |
|
|
| model_config = model_runner.config |
| eval_cfg = model_config.data.eval |
| crop_feats = {k: [None] + v for k, v in dict(eval_cfg.feat).items()} |
|
|
| max_msa_clusters = eval_cfg.max_msa_clusters |
| max_extra_msa = model_config.data.common.max_extra_msa |
| |
| if (model_name == "model_1" or model_name == "model_2") and use_templates: |
| pad_msa_clusters = max_msa_clusters - eval_cfg.max_templates |
| else: |
| pad_msa_clusters = max_msa_clusters |
|
|
| max_msa_clusters = pad_msa_clusters |
|
|
| |
| input_fix = make_fixed_size( |
| input_features, |
| crop_feats, |
| msa_cluster_size=max_msa_clusters, |
| extra_msa_size=max_extra_msa, |
| num_res=pad_len, |
| num_templates=4, |
| ) |
| return input_fix |
|
|
| class file_manager: |
| def __init__(self, prefix: str, result_dir: Path): |
| self.prefix = prefix |
| self.result_dir = result_dir |
| self.tag = None |
| self.files = {} |
|
|
| def get(self, x: str, ext:str) -> Path: |
| if self.tag not in self.files: |
| self.files[self.tag] = [] |
| file = self.result_dir.joinpath(f"{self.prefix}_{x}_{self.tag}.{ext}") |
| self.files[self.tag].append([x,ext,file]) |
| return file |
|
|
| def set_tag(self, tag): |
| self.tag = tag |
|
|
| def predict_structure( |
| prefix: str, |
| result_dir: Path, |
| feature_dict: Dict[str, Any], |
| is_complex: bool, |
| use_templates: bool, |
| sequences_lengths: List[int], |
| pad_len: int, |
| model_type: str, |
| model_runner_and_params: List[Tuple[str, model.RunModel, haiku.Params]], |
| initial_guess: str = None, |
| num_relax: int = 0, |
| relax_max_iterations: int = 0, |
| relax_tolerance: float = 2.39, |
| relax_stiffness: float = 10.0, |
| relax_max_outer_iterations: int = 3, |
| rank_by: str = "auto", |
| random_seed: int = 0, |
| num_seeds: int = 1, |
| stop_at_score: float = 100, |
| prediction_callback: Callable[[Any, Any, Any, Any, Any], Any] = None, |
| use_gpu_relax: bool = False, |
| save_all: bool = False, |
| save_single_representations: bool = False, |
| save_pair_representations: bool = False, |
| save_recycles: bool = False, |
| calc_extra_ptm: bool = False, |
| use_probs_extra: bool = True, |
| ): |
| """Predicts structure using AlphaFold for the given sequence.""" |
| mean_scores = [] |
| conf = [] |
| unrelaxed_pdb_lines = [] |
| prediction_times = [] |
| model_names = [] |
| files = file_manager(prefix, result_dir) |
| seq_len = sum(sequences_lengths) |
|
|
| |
| for seed_num, seed in enumerate(range(random_seed, random_seed+num_seeds)): |
|
|
| |
| for model_num, (model_name, model_runner, params) in enumerate(model_runner_and_params): |
|
|
| |
| model_runner.params = params |
|
|
| |
| |
| |
| if "multimer" in model_type: |
| if model_num == 0 and seed_num == 0: |
| |
| input_features = feature_dict |
| input_features["asym_id"] = input_features["asym_id"] - input_features["asym_id"][...,0] |
| else: |
| if model_num == 0: |
| input_features = model_runner.process_features(feature_dict, random_seed=seed) |
| r = input_features["aatype"].shape[0] |
| input_features["asym_id"] = np.tile(feature_dict["asym_id"],r).reshape(r,-1) |
| if seq_len < pad_len: |
| input_features = pad_input(input_features, model_runner, |
| model_name, pad_len, use_templates) |
| logger.info(f"Padding length to {pad_len}") |
|
|
|
|
| tag = f"{model_type}_{model_name}_seed_{seed:03d}" |
| model_names.append(tag) |
| files.set_tag(tag) |
|
|
| |
| if initial_guess: |
| input_guess = Path(initial_guess) |
| if input_guess.suffix == ".pdb": |
| pdb_string = pdb_to_string(initial_guess) |
| input_features["all_atom_positions"] = protein.from_pdb_string(pdb_string).atom_positions |
| elif input_guess.suffix == ".cif": |
| input_features["all_atom_positions"] = protein.from_mmcif_string(input_guess.read_text()).atom_positions |
| else: |
| raise ValueError(f"Unsupported initial guess file format: {initial_guess}") |
| |
|
|
| |
| |
| |
| start = time.time() |
|
|
| |
| def callback(result, recycles): |
| if recycles == 0: result.pop("tol",None) |
| if not is_complex: result.pop("iptm",None) |
| print_line = "" |
| for x,y in [["mean_plddt","pLDDT"],["ptm","pTM"],["iptm","ipTM"],["tol","tol"]]: |
| if x in result: |
| print_line += f" {y}={result[x]:.3g}" |
| logger.info(f"{tag} recycle={recycles}{print_line}") |
|
|
| if save_recycles: |
| final_atom_mask = result["structure_module"]["final_atom_mask"] |
| b_factors = result["plddt"][:, None] * final_atom_mask |
| unrelaxed_protein = protein.from_prediction( |
| features=input_features, |
| result=result, b_factors=b_factors, |
| remove_leading_feature_dimension=("multimer" not in model_type)) |
| files.get("unrelaxed",f"r{recycles}.pdb").write_text(protein.to_pdb(unrelaxed_protein)) |
|
|
| if save_all: |
| with files.get("all",f"r{recycles}.pickle").open("wb") as handle: |
| pickle.dump(result, handle) |
| del unrelaxed_protein |
|
|
| return_representations = save_all or save_single_representations or save_pair_representations |
|
|
| |
| result, recycles = \ |
| model_runner.predict(input_features, |
| random_seed=seed, |
| return_representations=return_representations, |
| callback=callback) |
|
|
| if calc_extra_ptm and 'predicted_aligned_error' in result.keys(): |
| extra_ptm_output = extra_ptm.get_chain_and_interface_metrics(result, input_features['asym_id'], |
| use_probs_extra=use_probs_extra, |
| use_jnp=False) |
| result.pop('pae_matrix_with_logits', None) |
| result['actifptm'] = extra_ptm_output['actifptm'] |
| else: |
| calc_extra_ptm = False |
| prediction_times.append(time.time() - start) |
|
|
| |
| |
| |
|
|
| |
| mean_scores.append(result["ranking_confidence"]) |
| if recycles == 0: result.pop("tol",None) |
| if not is_complex: result.pop("iptm",None) |
| print_line = "" |
| conf.append({}) |
| for x,y in [["mean_plddt","pLDDT"],["ptm","pTM"],["iptm","ipTM"], ['actifptm', 'actifpTM']]: |
| if x in result: |
| print_line += f" {y}={result[x]:.3g}" |
| conf[-1][x] = float(result[x]) |
| conf[-1]["print_line"] = print_line |
| logger.info(f"{tag} took {prediction_times[-1]:.1f}s ({recycles} recycles)") |
|
|
| |
| final_atom_mask = result["structure_module"]["final_atom_mask"] |
| b_factors = result["plddt"][:, None] * final_atom_mask |
| unrelaxed_protein = protein.from_prediction( |
| features=input_features, |
| result=result, |
| b_factors=b_factors, |
| remove_leading_feature_dimension=("multimer" not in model_type)) |
|
|
| |
| if prediction_callback is not None: |
| prediction_callback(unrelaxed_protein, sequences_lengths, |
| result, input_features, (tag, False)) |
|
|
| |
| |
| |
|
|
| |
| protein_lines = protein.to_pdb(unrelaxed_protein) |
| files.get("unrelaxed","pdb").write_text(protein_lines) |
| unrelaxed_pdb_lines.append(protein_lines) |
|
|
| |
| if save_all: |
| with files.get("all","pickle").open("wb") as handle: |
| pickle.dump(result, handle) |
| if save_single_representations: |
| np.save(files.get("single_repr","npy"),result["representations"]["single"]) |
| if save_pair_representations: |
| np.save(files.get("pair_repr","npy"),result["representations"]["pair"]) |
|
|
| |
| plddt = result["plddt"][:seq_len] |
| scores = {"plddt": np.around(plddt.astype(float), 2).tolist()} |
| if "predicted_aligned_error" in result: |
| pae = result["predicted_aligned_error"][:seq_len,:seq_len] |
| scores.update({"max_pae": pae.max().astype(float).item(), |
| "pae": np.around(pae.astype(float), 2).tolist()}) |
| if calc_extra_ptm: |
| scores.update(extra_ptm_output) |
| for k in ["ptm", "iptm"]: |
| if k in conf[-1]: |
| scores[k] = np.around(conf[-1][k], 2).item() |
| del pae |
| del plddt |
| file = files.get("scores", "json") |
| if hasOrjson: |
| file.write_bytes(orjson.dumps(scores)) |
| else: |
| file.write_text(json.dumps(scores)) |
|
|
| del result, unrelaxed_protein |
|
|
| |
| if mean_scores[-1] > stop_at_score: break |
|
|
| |
| if mean_scores[-1] > stop_at_score: break |
|
|
| |
| if "multimer" not in model_type: del input_features |
| if "multimer" in model_type: del input_features |
|
|
| |
| |
| |
|
|
| rank, metric = [],[] |
| result_files = [] |
| logger.info(f"reranking models by '{rank_by}' metric") |
| model_rank = np.array(mean_scores).argsort()[::-1] |
| for n, key in enumerate(model_rank): |
| metric.append(conf[key]) |
| tag = model_names[key] |
| files.set_tag(tag) |
| |
| if n < num_relax: |
| start = time.time() |
| pdb_lines = relax_me( |
| pdb_lines=unrelaxed_pdb_lines[key], |
| max_iterations=relax_max_iterations, |
| tolerance=relax_tolerance, |
| stiffness=relax_stiffness, |
| max_outer_iterations=relax_max_outer_iterations, |
| use_gpu=use_gpu_relax) |
| files.get("relaxed","pdb").write_text(pdb_lines) |
| logger.info(f"Relaxation took {(time.time() - start):.1f}s") |
|
|
| |
| new_tag = f"rank_{(n+1):03d}_{tag}" |
| rank.append(new_tag) |
| logger.info(f"{new_tag}{metric[-1]['print_line']}") |
| for x, ext, file in files.files[tag]: |
| new_file = result_dir.joinpath(f"{prefix}_{x}_{new_tag}.{ext}") |
| file.rename(new_file) |
| result_files.append(new_file) |
|
|
| return {"rank":rank, |
| "metric":metric, |
| "result_files":result_files} |
|
|
| def get_msa_and_templates( |
| jobname: str, |
| query_sequences: Union[str, List[str]], |
| a3m_lines: Optional[List[str]], |
| result_dir: Path, |
| msa_mode: str, |
| use_templates: bool, |
| custom_template_path: str, |
| pair_mode: str, |
| pairing_strategy: str = "greedy", |
| host_url: str = DEFAULT_API_SERVER, |
| user_agent: str = "", |
| max_template_date="2100-01-01", |
| max_template_hits=20, |
| ) -> Tuple[ |
| Optional[List[str]], Optional[List[str]], List[str], List[int], List[Dict[str, Any]] |
| ]: |
| from colabfold.colabfold import run_mmseqs2 |
|
|
| use_env = msa_mode == "mmseqs2_uniref_env" or msa_mode == "mmseqs2_uniref_env_envpair" |
| use_envpair = msa_mode == "mmseqs2_uniref_env_envpair" |
| if isinstance(query_sequences, str): query_sequences = [query_sequences] |
|
|
| |
| query_seqs_unique = [] |
| for x in query_sequences: |
| if x not in query_seqs_unique: |
| query_seqs_unique.append(x) |
|
|
| |
| query_seqs_cardinality = [0] * len(query_seqs_unique) |
| for seq in query_sequences: |
| seq_idx = query_seqs_unique.index(seq) |
| query_seqs_cardinality[seq_idx] += 1 |
|
|
| |
| template_features = [] |
| if use_templates: |
| |
| if custom_template_path is not None: |
| if msa_mode == "single_sequence": |
| a3m_lines = [] |
| num = 101 |
| for i, seq in enumerate(query_seqs_unique): |
| a3m_lines.append(f">{num + i}\n{seq}") |
|
|
| if a3m_lines is None: |
| a3m_lines_mmseqs2 = run_mmseqs2( |
| query_seqs_unique, |
| str(result_dir.joinpath(jobname)), |
| use_env, |
| use_templates=False, |
| host_url=host_url, |
| user_agent=user_agent, |
| ) |
| else: |
| a3m_lines_mmseqs2 = a3m_lines |
| template_paths = {} |
| for index in range(0, len(query_seqs_unique)): |
| template_paths[index] = custom_template_path |
| else: |
| a3m_lines_mmseqs2, template_paths = run_mmseqs2( |
| query_seqs_unique, |
| str(result_dir.joinpath(jobname)), |
| use_env, |
| use_templates=True, |
| host_url=host_url, |
| user_agent=user_agent, |
| ) |
| if template_paths is None: |
| logger.info("No template detected") |
| for index in range(0, len(query_seqs_unique)): |
| template_feature = mk_mock_template(query_seqs_unique[index]) |
| template_features.append(template_feature) |
| else: |
| for index in range(0, len(query_seqs_unique)): |
| if template_paths[index] is not None: |
| template_feature = mk_template( |
| a3m_lines_mmseqs2[index], |
| template_paths[index], |
| query_seqs_unique[index], |
| max_template_date=max_template_date, |
| max_hits=max_template_hits, |
| ) |
| if len(template_feature["template_domain_names"]) == 0: |
| template_feature = mk_mock_template(query_seqs_unique[index]) |
| logger.info(f"Sequence {index} found no templates") |
| else: |
| logger.info( |
| f"Sequence {index} found templates: {template_feature['template_domain_names'].astype(str).tolist()}" |
| ) |
| else: |
| template_feature = mk_mock_template(query_seqs_unique[index]) |
| logger.info(f"Sequence {index} found no templates") |
|
|
| template_features.append(template_feature) |
| else: |
| for index in range(0, len(query_seqs_unique)): |
| template_feature = mk_mock_template(query_seqs_unique[index]) |
| template_features.append(template_feature) |
|
|
| if len(query_sequences) == 1: |
| pair_mode = "none" |
|
|
| if pair_mode == "none" or pair_mode == "unpaired" or pair_mode == "unpaired_paired": |
| if msa_mode == "single_sequence": |
| a3m_lines = [] |
| num = 101 |
| for i, seq in enumerate(query_seqs_unique): |
| a3m_lines.append(f">{num + i}\n{seq}") |
| else: |
| |
| a3m_lines = run_mmseqs2( |
| query_seqs_unique, |
| str(result_dir.joinpath(jobname)), |
| use_env, |
| use_pairing=False, |
| host_url=host_url, |
| user_agent=user_agent, |
| ) |
| else: |
| a3m_lines = None |
|
|
| if msa_mode != "single_sequence" and ( |
| pair_mode == "paired" or pair_mode == "unpaired_paired" |
| ): |
| |
| if len(query_seqs_unique) > 1: |
| paired_a3m_lines = run_mmseqs2( |
| query_seqs_unique, |
| str(result_dir.joinpath(jobname)), |
| use_envpair, |
| use_pairing=True, |
| pairing_strategy=pairing_strategy, |
| host_url=host_url, |
| user_agent=user_agent, |
| ) |
| else: |
| |
| num = 101 |
| paired_a3m_lines = [] |
| for i in range(0, query_seqs_cardinality[0]): |
| paired_a3m_lines.append(f">{num+i}\n{query_seqs_unique[0]}\n") |
| else: |
| paired_a3m_lines = None |
|
|
| return ( |
| a3m_lines, |
| paired_a3m_lines, |
| query_seqs_unique, |
| query_seqs_cardinality, |
| template_features, |
| ) |
|
|
| def build_monomer_feature( |
| sequence: str, unpaired_msa: str, template_features: Dict[str, Any] |
| ): |
| msa = pipeline.parsers.parse_a3m(unpaired_msa) |
| |
| return { |
| **pipeline.make_sequence_features( |
| sequence=sequence, description="none", num_res=len(sequence) |
| ), |
| **pipeline.make_msa_features([msa]), |
| **template_features, |
| } |
|
|
| def build_multimer_feature(paired_msa: str) -> Dict[str, ndarray]: |
| parsed_paired_msa = pipeline.parsers.parse_a3m(paired_msa) |
| return { |
| f"{k}_all_seq": v |
| for k, v in pipeline.make_msa_features([parsed_paired_msa]).items() |
| } |
|
|
| def process_multimer_features( |
| features_for_chain: Dict[str, Dict[str, ndarray]], |
| min_num_seq: int = 512, |
| ) -> Dict[str, ndarray]: |
| all_chain_features = {} |
| for chain_id, chain_features in features_for_chain.items(): |
| all_chain_features[chain_id] = pipeline_multimer.convert_monomer_features( |
| chain_features, chain_id |
| ) |
|
|
| all_chain_features = pipeline_multimer.add_assembly_features(all_chain_features) |
| |
| |
| feature_processing.process_unmerged_features(all_chain_features) |
| np_chains_list = list(all_chain_features.values()) |
| |
| pair_msa_sequences = not feature_processing._is_homomer_or_monomer(np_chains_list) |
| chains = list(np_chains_list) |
| chain_keys = chains[0].keys() |
| updated_chains = [] |
| for chain_num, chain in enumerate(chains): |
| new_chain = {k: v for k, v in chain.items() if "_all_seq" not in k} |
| for feature_name in chain_keys: |
| if feature_name.endswith("_all_seq"): |
| feats_padded = msa_pairing.pad_features( |
| chain[feature_name], feature_name |
| ) |
| new_chain[feature_name] = feats_padded |
| new_chain["num_alignments_all_seq"] = np.asarray( |
| len(np_chains_list[chain_num]["msa_all_seq"]) |
| ) |
| updated_chains.append(new_chain) |
| np_chains_list = updated_chains |
| np_chains_list = feature_processing.crop_chains( |
| np_chains_list, |
| msa_crop_size=feature_processing.MSA_CROP_SIZE, |
| pair_msa_sequences=pair_msa_sequences, |
| max_templates=feature_processing.MAX_TEMPLATES, |
| ) |
| |
| |
| common_features = set([*np_chains_list[0]]).intersection(*np_chains_list) |
| np_chains_list = [ |
| {key: value for (key, value) in chain.items() if key in common_features} |
| for chain in np_chains_list |
| ] |
| np_example = feature_processing.msa_pairing.merge_chain_features( |
| np_chains_list=np_chains_list, |
| pair_msa_sequences=pair_msa_sequences, |
| max_templates=feature_processing.MAX_TEMPLATES, |
| ) |
| np_example = feature_processing.process_final(np_example) |
|
|
| |
| np_example = pipeline_multimer.pad_msa(np_example, min_num_seq=min_num_seq) |
| return np_example |
|
|
| def generate_input_feature( |
| query_seqs_unique: List[str], |
| query_seqs_cardinality: List[int], |
| unpaired_msa: List[str], |
| paired_msa: List[str], |
| template_features: List[Dict[str, Any]], |
| is_complex: bool, |
| model_type: str, |
| max_seq: int, |
| ) -> Tuple[Dict[str, Any], Dict[str, str]]: |
|
|
| input_feature = {} |
| domain_names = {} |
| if is_complex and "multimer" not in model_type: |
|
|
| full_sequence = "" |
| Ls = [] |
| for sequence_index, sequence in enumerate(query_seqs_unique): |
| for cardinality in range(0, query_seqs_cardinality[sequence_index]): |
| full_sequence += sequence |
| Ls.append(len(sequence)) |
|
|
| |
| a3m_lines = f">0\n{full_sequence}\n" |
| a3m_lines += pair_msa(query_seqs_unique, query_seqs_cardinality, paired_msa, unpaired_msa) |
|
|
| input_feature = build_monomer_feature(full_sequence, a3m_lines, mk_mock_template(full_sequence)) |
| input_feature["residue_index"] = np.concatenate([np.arange(L) for L in Ls]) |
| input_feature["asym_id"] = np.concatenate([np.full(L,n) for n,L in enumerate(Ls)]) |
| if any( |
| [ |
| template != b"none" |
| for i in template_features |
| for template in i["template_domain_names"] |
| ] |
| ): |
| logger.warning( |
| f"{model_type} complex does not consider templates. Chose multimer model-type for template support." |
| ) |
|
|
| else: |
| features_for_chain = {} |
| chain_cnt = 0 |
| |
| for sequence_index, sequence in enumerate(query_seqs_unique): |
|
|
| |
| if unpaired_msa is None: |
| input_msa = f">{101 + sequence_index}\n{sequence}" |
| else: |
| input_msa = unpaired_msa[sequence_index] |
|
|
| feature_dict = build_monomer_feature( |
| sequence, input_msa, template_features[sequence_index]) |
|
|
| if "multimer" in model_type: |
| |
| if paired_msa is None: |
| input_msa = f">{101 + sequence_index}\n{sequence}" |
| else: |
| input_msa = paired_msa[sequence_index] |
| feature_dict.update(build_multimer_feature(input_msa)) |
|
|
| |
| for cardinality in range(0, query_seqs_cardinality[sequence_index]): |
| features_for_chain[protein.PDB_CHAIN_IDS[chain_cnt]] = feature_dict |
| chain_cnt += 1 |
|
|
| if "multimer" in model_type: |
| |
| input_feature = process_multimer_features(features_for_chain, min_num_seq=max_seq + 4) |
| domain_names = { |
| chain: [ |
| name.decode("UTF-8") |
| for name in feature["template_domain_names"] |
| if name != b"none" |
| ] |
| for (chain, feature) in features_for_chain.items() |
| } |
| else: |
| input_feature = features_for_chain[protein.PDB_CHAIN_IDS[0]] |
| input_feature["asym_id"] = np.zeros(input_feature["aatype"].shape[0],dtype=int) |
| domain_names = { |
| protein.PDB_CHAIN_IDS[0]: [ |
| name.decode("UTF-8") |
| for name in input_feature["template_domain_names"] |
| if name != b"none" |
| ] |
| } |
| return (input_feature, domain_names) |
|
|
| def normalize_a3m(lines: list[str]) -> list[str]: |
| out = [] |
| i = 0 |
|
|
| |
| if lines and lines[0].startswith("#"): |
| out.append(lines[0].rstrip("\n")) |
| i = 1 |
|
|
| header = None |
| seq_chunks = [] |
| while i < len(lines): |
| line = lines[i].strip() |
| i += 1 |
| if not line: |
| continue |
| if line.startswith(">"): |
| if header is not None: |
| out.append(header) |
| out.append("".join(seq_chunks)) |
| header = line |
| seq_chunks = [] |
| else: |
| |
| seq_chunks.append("".join(line.split())) |
| if header is not None: |
| out.append(header) |
| out.append("".join(seq_chunks)) |
|
|
| return out |
|
|
| def unserialize_msa( |
| a3m_lines: List[str], query_sequence: Union[List[str], str] |
| ) -> Tuple[ |
| Optional[List[str]], |
| Optional[List[str]], |
| List[str], |
| List[int], |
| List[Dict[str, Any]], |
| ]: |
| a3m_lines = a3m_lines[0].replace("\x00", "").splitlines() |
| a3m_lines = normalize_a3m(a3m_lines) |
| if not a3m_lines[0].startswith("#") or len(a3m_lines[0][1:].split("\t")) != 2: |
| assert isinstance(query_sequence, str) |
| return ( |
| ["\n".join(a3m_lines)], |
| None, |
| [query_sequence], |
| [1], |
| [mk_mock_template(query_sequence)], |
| ) |
|
|
| if len(a3m_lines) < 3: |
| raise ValueError(f"Unknown file format a3m") |
| tab_sep_entries = a3m_lines[0][1:].split("\t") |
| query_seq_len = tab_sep_entries[0].split(",") |
| query_seq_len = list(map(int, query_seq_len)) |
| query_seqs_cardinality = tab_sep_entries[1].split(",") |
| query_seqs_cardinality = list(map(int, query_seqs_cardinality)) |
| num_chains = len(query_seq_len) |
| is_homooligomer = ( |
| True if num_chains == 1 and query_seqs_cardinality[0] > 1 else False |
| ) |
| is_single_protein = ( |
| True if num_chains == 1 and query_seqs_cardinality[0] == 1 else False |
| ) |
|
|
| query_seqs_unique = [] |
| qcat = a3m_lines[2] |
| prev = 0 |
| for qlen in query_seq_len: |
| nxt = prev + max(int(qlen), 0) |
| query_seqs_unique.append(qcat[prev:nxt]) |
| prev = nxt |
|
|
| paired_chunks = [[] for _ in range(num_chains)] |
| unpaired_chunks = [[] for _ in range(num_chains)] |
| already_in = set() |
|
|
| qlens_local = query_seq_len |
| def _split_by_aln(s): |
| segments = [""] * num_chains |
| has_aa = [False] * num_chains |
| seg_idx = 0 |
| aln_count = 0 |
| start = 0 |
| curr_has_aa = False |
|
|
| dash = '-' |
| A, Z = 'A', 'Z' |
| a, z = 'a', 'z' |
| n = len(s) |
| i = 0 |
| while i < n and seg_idx < num_chains: |
| c = s[i] |
| |
| if not (a <= c <= z): |
| if c != dash and (A <= c <= Z): |
| curr_has_aa = True |
| aln_count += 1 |
| if aln_count == qlens_local[seg_idx]: |
| |
| segments[seg_idx] = s[start:i+1] |
| has_aa[seg_idx] = curr_has_aa |
| seg_idx += 1 |
| aln_count = 0 |
| start = i + 1 |
| curr_has_aa = False |
| i += 1 |
| return segments, has_aa |
|
|
| i = 1 |
| end = len(a3m_lines) |
| while i + 1 < end: |
| header = a3m_lines[i] |
| seq = a3m_lines[i + 1] |
| i += 2 |
|
|
| key = (header, seq) |
| if key in already_in: |
| continue |
| already_in.add(key) |
|
|
| segments, has_aa = _split_by_aln(seq) |
|
|
| |
| if (not is_single_protein) and (not is_homooligomer) and (sum(has_aa) > 1): |
| header_no_gt = header.replace(">", "") |
| header_fields = header_no_gt.split("\t") |
| for j, seg in enumerate(segments): |
| label = header_fields[j] if j < len(header_fields) else (header_fields[-1] if header_fields else "") |
| pc = paired_chunks[j] |
| pc.append(">") |
| pc.append(label) |
| pc.append("\n") |
| pc.append(seg) |
| pc.append("\n") |
| else: |
| for j, seg in enumerate(segments): |
| if has_aa[j]: |
| uc = unpaired_chunks[j] |
| uc.append(header) |
| uc.append("\n") |
| uc.append(seg) |
| uc.append("\n") |
|
|
| if is_homooligomer: |
| num = 101 |
| count = max(query_seqs_cardinality[0], 0) |
| q = query_seqs_unique[0] if query_seqs_unique else "" |
| paired_msa = [f">{num + k}\n{q}\n" for k in range(count)] |
| else: |
| if is_single_protein: |
| paired_msa = None |
| else: |
| paired_msa = ["".join(ch) for ch in paired_chunks] |
|
|
|
|
| unpaired_msa = ["".join(ch) for ch in unpaired_chunks] |
| template_features = [mk_mock_template(q) for q in query_seqs_unique] |
|
|
| return ( |
| unpaired_msa, |
| paired_msa, |
| query_seqs_unique, |
| query_seqs_cardinality, |
| template_features, |
| ) |
|
|
| def put_mmciffiles_into_resultdir( |
| pdb_hit_file: Path, |
| local_pdb_path: Path, |
| result_dir: Path, |
| max_num_templates: int = 20, |
| ): |
| """Put mmcif files from local_pdb_path into result_dir and unzip them. |
| max_num_templates is the maximum number of templates to use (default: 20). |
| Args: |
| pdb_hit_file (Path): Path to pdb_hit_file |
| local_pdb_path (Path): Path to local_pdb_path |
| result_dir (Path): Path to result_dir |
| max_num_templates (int): Maximum number of templates to use |
| """ |
| pdb_hit_file = Path(pdb_hit_file) |
| local_pdb_path = Path(local_pdb_path) |
| result_dir = Path(result_dir) |
| result_dir.mkdir(parents=True, exist_ok=True) |
|
|
| query_ids = [] |
| with open(pdb_hit_file, "r") as f: |
| for line in f: |
| query_id = line.split("\t")[0] |
| query_ids.append(query_id) |
| if query_ids.count(query_id) > max_num_templates: |
| continue |
| else: |
| pdb_id = line.split("\t")[1][0:4] |
| divided_pdb_id = pdb_id[1:3] |
| gzipped_divided_mmcif_file = local_pdb_path / divided_pdb_id / (pdb_id + ".cif.gz") |
| gzipped_mmcif_file = local_pdb_path / (pdb_id + ".cif.gz") |
| unzipped_mmcif_file = local_pdb_path / (pdb_id + ".cif") |
| result_file = result_dir / (pdb_id + ".cif") |
| possible_files = [gzipped_divided_mmcif_file, gzipped_mmcif_file, unzipped_mmcif_file] |
| for file in possible_files: |
| if file == gzipped_divided_mmcif_file or file == gzipped_mmcif_file: |
| if file.exists(): |
| with gzip.open(file, "rb") as f_in: |
| with open(result_file, "wb") as f_out: |
| shutil.copyfileobj(f_in, f_out) |
| break |
| else: |
| |
| if file.exists(): |
| shutil.copyfile(file, result_file) |
| break |
| if not result_file.exists(): |
| print(f"WARNING: {pdb_id} does not exist in {local_pdb_path}.") |
|
|
|
|
| def run( |
| queries: List[Tuple[str, Union[str, List[str]], Optional[List[str]], Optional[List[Tuple[str, str,int]]]]], |
| result_dir: Union[str, Path], |
| num_models: int, |
| is_complex: bool, |
| num_recycles: Optional[int] = None, |
| recycle_early_stop_tolerance: Optional[float] = None, |
| model_order: List[int] = [1,2,3,4,5], |
| initial_guess: str = None, |
| num_ensemble: int = 1, |
| model_type: str = "auto", |
| msa_mode: str = "mmseqs2_uniref_env", |
| use_templates: bool = False, |
| custom_template_path: str = None, |
| custom_template_cache_path: str = None, |
| num_relax: int = 0, |
| relax_max_iterations: int = 0, |
| relax_tolerance: float = 2.39, |
| relax_stiffness: float = 10.0, |
| relax_max_outer_iterations: int = 3, |
| keep_existing_results: bool = True, |
| rank_by: str = "auto", |
| pair_mode: str = "unpaired_paired", |
| pairing_strategy: str = "greedy", |
| data_dir: Union[str, Path] = default_data_dir, |
| host_url: str = DEFAULT_API_SERVER, |
| user_agent: str = "", |
| random_seed: int = 0, |
| num_seeds: int = 1, |
| recompile_padding: Union[int, float] = 10, |
| zip_results: bool = False, |
| prediction_callback: Callable[[Any, Any, Any, Any, Any], Any] = None, |
| save_single_representations: bool = False, |
| save_pair_representations: bool = False, |
| skip_output: List[str] = [], |
| jobname_prefix: Optional[str] = None, |
| save_all: bool = False, |
| save_recycles: bool = False, |
| use_dropout: bool = False, |
| use_gpu_relax: bool = False, |
| stop_at_score: float = 100, |
| dpi: int = 200, |
| max_seq: Optional[int] = None, |
| max_extra_seq: Optional[int] = None, |
| pdb_hit_file: Optional[Path] = None, |
| local_pdb_path: Optional[Path] = None, |
| use_cluster_profile: bool = True, |
| feature_dict_callback: Callable[[Any], Any] = None, |
| calc_extra_ptm: bool = False, |
| use_probs_extra: bool = True, |
| max_template_date: str = "2100-01-01", |
| max_template_hits: int = 20, |
| **kwargs |
| ): |
| |
| try: |
| |
| from tpu_info import device |
| if len(device.get_local_chips()) > 0: |
| import jax.tools.colab_tpu |
| jax.tools.colab_tpu.setup_tpu() |
| logger.info('Running on TPU') |
| use_gpu_relax = False |
| except: |
| if local_devices()[0].platform == 'cpu': |
| logger.info("WARNING: no GPU detected, will be using CPU") |
| use_gpu_relax = False |
| else: |
| import tensorflow as tf |
| tf.get_logger().setLevel(logging.ERROR) |
| logger.info('Running on GPU') |
| |
| tf.config.set_visible_devices([], 'GPU') |
|
|
| from colabfold.alphafold.models import load_models_and_params |
|
|
| data_dir = Path(data_dir) |
| result_dir = Path(result_dir) |
| result_dir.mkdir(exist_ok=True) |
| model_type = set_model_type(is_complex, model_type) |
|
|
| |
| old_names = {"MMseqs2 (UniRef+Environmental)":"mmseqs2_uniref_env", |
| "MMseqs2 (UniRef+Environmental+Env. Pairing)":"mmseqs2_uniref_env_envpair", |
| "MMseqs2 (UniRef only)":"mmseqs2_uniref", |
| "unpaired+paired":"unpaired_paired"} |
| msa_mode = old_names.get(msa_mode,msa_mode) |
| pair_mode = old_names.get(pair_mode,pair_mode) |
| feature_dict_callback = kwargs.pop("input_features_callback", feature_dict_callback) |
| use_dropout = kwargs.pop("training", use_dropout) |
| use_fuse = kwargs.pop("use_fuse", True) |
| use_bfloat16 = kwargs.pop("use_bfloat16", True) |
| max_msa = kwargs.pop("max_msa",None) |
| if max_msa is not None: |
| max_seq, max_extra_seq = [int(x) for x in max_msa.split(":")] |
|
|
| if kwargs.pop("use_amber", False) and num_relax == 0: |
| num_relax = num_models * num_seeds |
|
|
| if len(kwargs) > 0: |
| print(f"WARNING: the following options are not being used: {kwargs}") |
|
|
| |
| if rank_by == "auto": |
| rank_by = "multimer" if is_complex else "plddt" |
| if "ptm" not in model_type and "multimer" not in model_type: |
| rank_by = "plddt" |
|
|
| |
| if not is_complex and calc_extra_ptm: |
| logger.info("Calculating extra pTM is not supported for single chain prediction, skipping it.") |
| calc_extra_ptm = False |
|
|
| |
| max_len = 0 |
| max_num = 0 |
| for _, query_sequence, _, _ in queries: |
| N = 1 if isinstance(query_sequence,str) else len(query_sequence) |
| L = len("".join(query_sequence)) |
| if L > max_len: max_len = L |
| if N > max_num: max_num = N |
|
|
| |
| |
| |
| |
| |
| |
|
|
| set_if = lambda x,y: y if x is None else x |
| if model_type in ["alphafold2_multimer_v1","alphafold2_multimer_v2"]: |
| (max_seq, max_extra_seq) = (set_if(max_seq,252), set_if(max_extra_seq,1152)) |
| elif model_type == "alphafold2_multimer_v3": |
| (max_seq, max_extra_seq) = (set_if(max_seq,508), set_if(max_extra_seq,2048)) |
| else: |
| (max_seq, max_extra_seq) = (set_if(max_seq,512), set_if(max_extra_seq,5120)) |
|
|
| if msa_mode == "single_sequence": |
| num_seqs = 1 |
| if is_complex and "multimer" not in model_type: num_seqs += max_num |
| if use_templates: num_seqs += 4 |
| max_seq = min(num_seqs, max_seq) |
| max_extra_seq = max(min(num_seqs - max_seq, max_extra_seq), 1) |
|
|
| |
| model_order.sort() |
|
|
| |
| if initial_guess is not None: |
| logger.info(f'Using initial guess: {initial_guess}') |
|
|
| |
| config = { |
| "num_queries": len(queries), |
| "use_templates": use_templates, |
| "num_relax": num_relax, |
| "relax_max_iterations": relax_max_iterations, |
| "relax_tolerance": relax_tolerance, |
| "relax_stiffness": relax_stiffness, |
| "relax_max_outer_iterations": relax_max_outer_iterations, |
| "msa_mode": msa_mode, |
| "model_type": model_type, |
| "num_models": num_models, |
| "num_recycles": num_recycles, |
| "recycle_early_stop_tolerance": recycle_early_stop_tolerance, |
| "num_ensemble": num_ensemble, |
| "model_order": model_order, |
| "initial_guess": initial_guess, |
| "keep_existing_results": keep_existing_results, |
| "rank_by": rank_by, |
| "max_seq": max_seq, |
| "max_extra_seq": max_extra_seq, |
| "pair_mode": pair_mode, |
| "pairing_strategy": pairing_strategy, |
| "host_url": host_url, |
| "user_agent": user_agent, |
| "stop_at_score": stop_at_score, |
| "random_seed": random_seed, |
| "num_seeds": num_seeds, |
| "recompile_padding": recompile_padding, |
| "commit": get_commit(), |
| "use_dropout": use_dropout, |
| "use_cluster_profile": use_cluster_profile, |
| "use_fuse": use_fuse, |
| "use_bfloat16": use_bfloat16, |
| "version": importlib_metadata.version("colabfold"), |
| "calc_extra_ptm": calc_extra_ptm, |
| "use_probs_extra": use_probs_extra, |
| "max_template_date": max_template_date, |
| "max_template_hits": max_template_hits, |
| } |
| config_out_file = result_dir.joinpath("config.json") |
| config_out_file.write_text(json.dumps(config, indent=4)) |
| use_env = "env" in msa_mode |
| use_msa = "mmseqs2" in msa_mode |
| use_amber = num_models > 0 and num_relax > 0 |
|
|
| bibtex_file = write_bibtex( |
| model_type if num_models > 0 else "", use_msa, use_env, use_templates, use_amber, result_dir |
| ) |
|
|
| if pdb_hit_file is not None: |
| if local_pdb_path is None: |
| raise ValueError("local_pdb_path is not specified.") |
| else: |
| custom_template_path = result_dir / "templates" |
| put_mmciffiles_into_resultdir(pdb_hit_file, local_pdb_path, custom_template_path) |
|
|
|
|
| if custom_template_path is not None: |
| mk_hhsearch_db(custom_template_path) |
|
|
| pad_len = 0 |
| ranks, metrics = [],[] |
| first_job = True |
| job_number = 0 |
| for job_number, (raw_jobname, query_sequence, a3m_lines, custom_template_path_per_entry) in enumerate(queries): |
|
|
| if use_templates and custom_template_path_per_entry is not None and isinstance(custom_template_path_per_entry, Path): |
| mk_hhsearch_single_entry_db(custom_template_path_per_entry, custom_template_cache_path) |
| custom_template_path = custom_template_cache_path |
|
|
| if jobname_prefix is not None: |
| |
| fill = len(str(len(queries))) |
| jobname = safe_filename(jobname_prefix) + "_" + str(job_number).zfill(fill) |
| job_number += 1 |
| else: |
| jobname = safe_filename(raw_jobname) |
|
|
| |
| |
| |
| |
| result_zip = result_dir.joinpath(jobname).with_suffix(".result.zip") |
| if keep_existing_results and result_zip.is_file(): |
| logger.info(f"Skipping {jobname} (result.zip)") |
| continue |
| |
| is_done_marker = result_dir.joinpath(jobname + ".done.txt") |
| if keep_existing_results and is_done_marker.is_file(): |
| logger.info(f"Skipping {jobname} (already done)") |
| continue |
|
|
| seq_len = len("".join(query_sequence)) |
| logger.info(f"Query {job_number + 1}/{len(queries)}: {jobname} (length {seq_len})") |
|
|
| |
| |
| |
| try: |
| pickled_msa_and_templates = result_dir.joinpath(f"{jobname}.pickle") |
| if pickled_msa_and_templates.is_file(): |
| with open(pickled_msa_and_templates, 'rb') as f: |
| (unpaired_msa, paired_msa, query_seqs_unique, query_seqs_cardinality, template_features) = pickle.load(f) |
| logger.info(f"Loaded {pickled_msa_and_templates}") |
|
|
| else: |
| if a3m_lines is None: |
| (unpaired_msa, paired_msa, query_seqs_unique, query_seqs_cardinality, template_features) \ |
| = get_msa_and_templates( |
| jobname, query_sequence, a3m_lines, result_dir, msa_mode, use_templates, |
| custom_template_path, pair_mode, pairing_strategy, host_url, user_agent, |
| max_template_date=max_template_date, max_template_hits=max_template_hits, |
| ) |
|
|
| elif a3m_lines is not None: |
| if(isinstance(a3m_lines, Path)): |
| a3m_lines = [a3m_lines.read_text()] |
| (unpaired_msa, paired_msa, query_seqs_unique, query_seqs_cardinality, template_features) \ |
| = unserialize_msa(a3m_lines, query_sequence) |
| if use_templates: |
| (_, _, _, _, template_features) \ |
| = get_msa_and_templates( |
| jobname, query_seqs_unique, unpaired_msa, result_dir, 'single_sequence', use_templates, |
| custom_template_path, pair_mode, pairing_strategy, host_url, user_agent, |
| max_template_date=max_template_date, max_template_hits=max_template_hits, |
| ) |
|
|
| if num_models == 0: |
| with open(pickled_msa_and_templates, 'wb') as f: |
| pickle.dump((unpaired_msa, paired_msa, query_seqs_unique, query_seqs_cardinality, template_features), f) |
| logger.info(f"Saved {pickled_msa_and_templates}") |
|
|
| |
| if not 'msa' in skip_output: |
| msa = msa_to_str(unpaired_msa, paired_msa, query_seqs_unique, query_seqs_cardinality) |
| result_dir.joinpath(f"{jobname}.a3m").write_text(msa) |
|
|
| except Exception as e: |
| logger.exception(f"Could not get MSA/templates for {jobname}: {e}") |
| continue |
|
|
| |
| |
| |
| try: |
| (feature_dict, domain_names) \ |
| = generate_input_feature(query_seqs_unique, query_seqs_cardinality, unpaired_msa, paired_msa, |
| template_features, is_complex, model_type, max_seq=max_seq) |
|
|
| |
| if feature_dict_callback is not None: |
| feature_dict_callback(feature_dict) |
|
|
| except Exception as e: |
| logger.exception(f"Could not generate input features {jobname}: {e}") |
| continue |
|
|
| |
| |
| |
|
|
| result_files = [] |
|
|
| |
| if not 'plots' in skip_output: |
| from colabfold.plot import plot_msa_v2 |
| msa_plot = plot_msa_v2(feature_dict, dpi=dpi) |
| coverage_png = result_dir.joinpath(f"{jobname}_coverage.png") |
| msa_plot.savefig(str(coverage_png), bbox_inches='tight') |
| msa_plot.close() |
| result_files.append(coverage_png) |
|
|
| if use_templates: |
| templates_file = result_dir.joinpath(f"{jobname}_template_domain_names.json") |
| templates_file.write_text(json.dumps(domain_names)) |
| result_files.append(templates_file) |
|
|
| result_files.append(result_dir.joinpath(jobname + ".a3m")) |
| result_files += [bibtex_file, config_out_file] |
|
|
| |
| |
| |
| if num_models > 0: |
| try: |
| |
| query_sequence_len_array = sum([[len(x)] * y |
| for x,y in zip(query_seqs_unique, query_seqs_cardinality)],[]) |
|
|
| |
| if seq_len > pad_len: |
| if isinstance(recompile_padding, float): |
| pad_len = math.ceil(seq_len * recompile_padding) |
| else: |
| pad_len = seq_len + recompile_padding |
| pad_len = min(pad_len, max_len) |
|
|
| |
| if first_job: |
| |
| if len(queries) == 1 and msa_mode != "single_sequence": |
| |
| if "msa_mask" in feature_dict: |
| num_seqs = int(sum(feature_dict["msa_mask"].max(-1) == 1)) |
| else: |
| num_seqs = int(len(feature_dict["msa"])) |
|
|
| if use_templates: num_seqs += 4 |
|
|
| |
| max_seq = min(num_seqs, max_seq) |
| max_extra_seq = max(min(num_seqs - max_seq, max_extra_seq), 1) |
| logger.info(f"Setting max_seq={max_seq}, max_extra_seq={max_extra_seq}") |
|
|
| model_runner_and_params = load_models_and_params( |
| num_models=num_models, |
| use_templates=use_templates, |
| num_recycles=num_recycles, |
| num_ensemble=num_ensemble, |
| model_order=model_order, |
| model_type=model_type, |
| data_dir=data_dir, |
| stop_at_score=stop_at_score, |
| rank_by=rank_by, |
| use_dropout=use_dropout, |
| max_seq=max_seq, |
| max_extra_seq=max_extra_seq, |
| use_cluster_profile=use_cluster_profile, |
| recycle_early_stop_tolerance=recycle_early_stop_tolerance, |
| use_fuse=use_fuse, |
| use_bfloat16=use_bfloat16, |
| save_all=save_all, |
| calc_extra_ptm=calc_extra_ptm |
| ) |
| first_job = False |
|
|
| results = predict_structure( |
| prefix=jobname, |
| result_dir=result_dir, |
| feature_dict=feature_dict, |
| is_complex=is_complex, |
| use_templates=use_templates, |
| sequences_lengths=query_sequence_len_array, |
| pad_len=pad_len, |
| initial_guess=initial_guess, |
| model_type=model_type, |
| model_runner_and_params=model_runner_and_params, |
| num_relax=num_relax, |
| relax_max_iterations=relax_max_iterations, |
| relax_tolerance=relax_tolerance, |
| relax_stiffness=relax_stiffness, |
| relax_max_outer_iterations=relax_max_outer_iterations, |
| rank_by=rank_by, |
| stop_at_score=stop_at_score, |
| prediction_callback=prediction_callback, |
| use_gpu_relax=use_gpu_relax, |
| random_seed=random_seed, |
| num_seeds=num_seeds, |
| save_all=save_all, |
| save_single_representations=save_single_representations, |
| save_pair_representations=save_pair_representations, |
| save_recycles=save_recycles, |
| calc_extra_ptm=calc_extra_ptm, |
| use_probs_extra=use_probs_extra, |
| ) |
| |
| result_files += results["result_files"] |
| ranks.append(results["rank"]) |
| metrics.append(results["metric"]) |
|
|
| except RuntimeError as e: |
| |
| logger.error(f"Could not predict {jobname}. Not Enough GPU memory? {e}") |
| continue |
|
|
| |
| |
| |
|
|
| |
| if not 'pae_json' in skip_output: |
| scores = [] |
| for r in results["rank"][:5]: |
| scores_file = result_dir.joinpath(f"{jobname}_scores_{r}.json") |
| with scores_file.open("r") as handle: |
| scores.append(json.load(handle)) |
|
|
| |
| if "pae" in scores[0]: |
| af_pae_file = result_dir.joinpath(f"{jobname}_predicted_aligned_error_v1.json") |
| af_pae_file.write_text(json.dumps({ |
| "predicted_aligned_error":scores[0]["pae"], |
| "max_predicted_aligned_error":scores[0]["max_pae"]})) |
| result_files.append(af_pae_file) |
|
|
| |
| if not 'plots' in skip_output: |
| from colabfold.colabfold import plot_paes |
| paes_plot = plot_paes([np.asarray(x["pae"]) for x in scores], |
| Ls=query_sequence_len_array, dpi=dpi) |
| pae_png = result_dir.joinpath(f"{jobname}_pae.png") |
| paes_plot.savefig(str(pae_png), bbox_inches='tight') |
| paes_plot.close() |
| result_files.append(pae_png) |
|
|
| |
| if calc_extra_ptm: |
| ext_metric_png = result_dir.joinpath(f"{jobname}_ext_metrics.png") |
| extra_ptm.plot_chain_pairwise_analysis(scores, fig_path=ext_metric_png) |
|
|
| |
| if not 'plots' in skip_output: |
| from colabfold.colabfold import plot_plddts |
| plddt_plot = plot_plddts([np.asarray(x["plddt"]) for x in scores], |
| Ls=query_sequence_len_array, dpi=dpi) |
| plddt_png = result_dir.joinpath(f"{jobname}_plddt.png") |
| plddt_plot.savefig(str(plddt_png), bbox_inches='tight') |
| plddt_plot.close() |
| result_files.append(plddt_png) |
|
|
| if zip_results: |
| with zipfile.ZipFile(result_zip, "w") as result_zip: |
| for file in result_files: |
| result_zip.write(file, arcname=file.name) |
|
|
| |
| for file in result_files: |
| if file != bibtex_file and file != config_out_file: |
| file.unlink() |
| else: |
| if num_models > 0: |
| is_done_marker.touch() |
|
|
| logger.info("Done") |
| return {"rank":ranks,"metric":metrics} |
|
|
| def set_model_type(is_complex: bool, model_type: str) -> str: |
| |
| old_names = { |
| "AlphaFold2-multimer-v1":"alphafold2_multimer_v1", |
| "AlphaFold2-multimer-v2":"alphafold2_multimer_v2", |
| "AlphaFold2-multimer-v3":"alphafold2_multimer_v3", |
| "AlphaFold2-ptm": "alphafold2_ptm", |
| "AlphaFold2": "alphafold2", |
| "DeepFold": "deepfold_v1", |
| } |
| model_type = old_names.get(model_type, model_type) |
| if model_type == "auto": |
| if is_complex: |
| model_type = "alphafold2_multimer_v3" |
| else: |
| model_type = "alphafold2_ptm" |
| return model_type |
|
|
| def generate_af3_input( |
| queries: List[Tuple[str, Union[str, List[str]], Optional[List[str]], Optional[List[Tuple[str, str, int]]]]], |
| result_dir: Union[str, Path], |
| msa_mode: str = "mmseqs2_uniref_env", |
| pair_mode: str = "unpaired_paired", |
| pairing_strategy: str = "greedy", |
| use_templates: bool = False, |
| custom_template_path: str = None, |
| jobname_prefix: Optional[str] = None, |
| host_url: str = DEFAULT_API_SERVER, |
| user_agent: str = "", |
| max_template_date: str = "2100-01-01", |
| max_template_hits: int = 20, |
| |
| |
| ): |
| result_dir = Path(result_dir) |
| result_dir.mkdir(exist_ok=True) |
|
|
| job_number = 0 |
|
|
| for job_number, (raw_jobname, query_sequences, a3m_lines, other_molecules) in enumerate(queries): |
| if jobname_prefix is not None: |
| |
| fill = len(str(len(queries))) |
| jobname = safe_filename(jobname_prefix) + "_" + str(job_number).zfill(fill) |
| |
| else: |
| jobname = safe_filename(raw_jobname) |
|
|
| |
| |
| |
| try: |
| if a3m_lines is None: |
| (unpaired_msa, paired_msa, query_seqs_unique, query_seqs_cardinality, template_features) \ |
| = get_msa_and_templates( |
| jobname, query_sequences, a3m_lines, result_dir, msa_mode, use_templates, |
| custom_template_path, pair_mode, pairing_strategy, host_url, user_agent, |
| max_template_date=max_template_date, max_template_hits=max_template_hits, |
| ) |
|
|
| elif a3m_lines is not None: |
| (unpaired_msa, paired_msa, query_seqs_unique, query_seqs_cardinality, template_features) \ |
| = unserialize_msa(a3m_lines, query_sequences) |
| |
| |
| |
| |
| |
| |
| |
|
|
| |
| af3 = AF3Utils(jobname, query_seqs_unique, query_seqs_cardinality, unpaired_msa, paired_msa, other_molecules) |
| with open(result_dir.joinpath(f"{jobname}.json"), "w") as f: |
| f.write(json.dumps(af3.content, indent = 4)) |
| |
| |
| msa = msa_to_str(unpaired_msa, paired_msa, query_seqs_unique, query_seqs_cardinality) |
| result_dir.joinpath(f"{jobname}.a3m").write_text(msa) |
|
|
| except Exception as e: |
| logger.exception(f"Failed to generate AF3 input json for {jobname}: Could not get MSA/templates. {e}") |
| continue |
|
|
| def main(): |
| parser = ArgumentParser(formatter_class=ArgumentDefaultsHelpFormatter) |
| parser.add_argument( |
| "input", |
| default="input", |
| help="One of: 1) directory with FASTA/A3M files, 2) CSV/TSV file, 3) FASTA file or 4) A3M file.", |
| ) |
| parser.add_argument("results", help="Results output directory.") |
|
|
| msa_group = parser.add_argument_group("MSA arguments", "") |
| msa_group.add_argument( |
| "--msa-only", |
| action="store_true", |
| help="Query and store MSAs from the MSA server without structure prediction", |
| ) |
| msa_group.add_argument( |
| "--msa-mode", |
| default="mmseqs2_uniref_env", |
| choices=[ |
| "mmseqs2_uniref_env", |
| "mmseqs2_uniref_env_envpair", |
| "mmseqs2_uniref", |
| "single_sequence", |
| ], |
| help="Databases to use to create the MSA: UniRef30+Environmental (default), UniRef30 only or None. " |
| "Using an A3M file as input overwrites this option.", |
| ) |
| msa_group.add_argument( |
| "--pair-mode", |
| help="Multimer MSA pairing mode for complex prediction: unpaired MSA only, paired MSA only, both (default).", |
| type=str, |
| default="unpaired_paired", |
| choices=["unpaired", "paired", "unpaired_paired"], |
| ) |
| msa_group.add_argument( |
| "--pair-strategy", |
| help="How sequences are paired during MSA pairing for complex prediction. " |
| "complete: MSA sequences should only be paired if the same species exists in all MSAs. " |
| "greedy: MSA sequences should only be paired if the same species exists in at least two MSAs. " |
| "Typically, greedy produces better predictions as it results in more paired sequences. " |
| "However, in some cases complete pairing might help, especially if MSAs are already large and can be well paired. ", |
| type=str, |
| default="greedy", |
| choices=["complete", "greedy"], |
| ) |
| msa_group.add_argument( |
| "--templates", |
| default=False, |
| action="store_true", |
| help="Query PDB templates from the MSA server. " |
| 'If this parameter is not set, "--custom-template-path" and "--pdb-hit-file" will not be used. ' |
| "Warning: This can result in the MSA server being queried with A3M input. " |
| ) |
| msa_group.add_argument( |
| "--custom-template-path", |
| type=str, |
| default=None, |
| help="Directory with PDB files to provide as custom templates to the predictor. " |
| "No templates will be queried from the MSA server. " |
| "'--templates' argument is also required to enable this.", |
| ) |
| msa_group.add_argument( |
| "--custom-template-cache-path", |
| type=str, |
| default=None, |
| help="Directory to generate temporary HHsearch databases for custom templates.", |
| ) |
| msa_group.add_argument( |
| "--max-template-date", |
| type=str, |
| default="2100-01-01", |
| help="Maximum release date (YYYY-MM-DD) for templates to be considered." |
| ) |
| msa_group.add_argument( |
| "--max-template-hits", |
| type=int, |
| default=20, |
| help="Maximum number of template hits to consider." |
| ) |
| msa_group.add_argument( |
| "--pdb-hit-file", |
| default=None, |
| help="Path to a BLAST-m8 formatted PDB hit file corresponding to the input A3M file (e.g. pdb70.m8). " |
| "Typically, this parameter should be used for a MSA generated by 'colabfold_search'. " |
| "'--templates' argument is also required to enable this.", |
| ) |
| msa_group.add_argument( |
| "--local-pdb-path", |
| default=None, |
| help="Directory of a local mirror of the PDB mmCIF database (e.g. /path/to/pdb/divided). " |
| "If provided, PDB files from the directory are used for templates specified by '--pdb-hit-file'. ", |
| ) |
|
|
| pred_group = parser.add_argument_group("Prediction arguments", "") |
| pred_group.add_argument( |
| "--num-recycle", |
| help="Number of prediction recycles. " |
| "Increasing recycles can improve the prediction quality but slows down the prediction.", |
| type=int, |
| default=None, |
| ) |
| pred_group.add_argument( |
| "--recycle-early-stop-tolerance", |
| help="Specify convergence criteria. " |
| "Run recycles until the distance between recycles is within the given tolerance value.", |
| type=float, |
| default=None, |
| ) |
| pred_group.add_argument( |
| "--num-ensemble", |
| help="Number of ensembles. " |
| "The trunk of the network is run multiple times with different random choices for the MSA cluster centers. " |
| "This can result in a better prediction at the cost of longer runtime. ", |
| type=int, |
| default=1, |
| ) |
| pred_group.add_argument( |
| "--num-seeds", |
| help="Number of seeds to try. Will iterate from range(random_seed, random_seed+num_seeds). " |
| "This can result in a better/different prediction at the cost of longer runtime. ", |
| type=int, |
| default=1, |
| ) |
| pred_group.add_argument( |
| "--random-seed", |
| help="Changing the seed for the random number generator can result in better/different structure predictions.", |
| type=int, |
| default=0, |
| ) |
| pred_group.add_argument( |
| "--num-models", |
| help="Number of models to use for structure prediction. " |
| "Reducing the number of models speeds up the prediction but results in lower quality.", |
| type=int, |
| default=5, |
| choices=[1, 2, 3, 4, 5], |
| ) |
| pred_group.add_argument( |
| "--model-type", |
| help="Predict structure/complex using the given model. " |
| 'Auto will pick "alphafold2_ptm" for structure predictions and "alphafold2_multimer_v3" for complexes. ' |
| "Older versions of the AF2 models are generally worse, however they can sometimes result in better predictions. " |
| "If the model is not already downloaded, it will be automatically downloaded. ", |
| type=str, |
| default="auto", |
| choices=[ |
| "auto", |
| "alphafold2", |
| "alphafold2_ptm", |
| "alphafold2_multimer_v1", |
| "alphafold2_multimer_v2", |
| "alphafold2_multimer_v3", |
| "deepfold_v1", |
| ], |
| ) |
| pred_group.add_argument("--model-order", default="1,2,3,4,5", type=str) |
| pred_group.add_argument( |
| "--initial-guess", |
| nargs="?", |
| const=True, |
| help="Specify a starting model for the prediction. If the main input file is a PDB format, " |
| "it will be used as the initial guess. Otherwise, you can provide an input file with this flag, " |
| "which will override the main input." |
| ) |
| pred_group.add_argument( |
| "--use-dropout", |
| default=False, |
| action="store_true", |
| help="Activate dropouts during inference to sample from uncertainty of the models. " |
| "This can result in different predictions and can be (carefully!) used for conformations sampling.", |
| ) |
| pred_group.add_argument( |
| "--max-seq", |
| help="Number of sequence clusters to use. " |
| "This can result in different predictions and can be (carefully!) used for conformations sampling.", |
| type=int, |
| default=None, |
| ) |
| pred_group.add_argument( |
| "--max-extra-seq", |
| help="Number of extra sequences to use. " |
| "This can result in different predictions and can be (carefully!) used for conformations sampling.", |
| type=int, |
| default=None, |
| ) |
| pred_group.add_argument( |
| "--max-msa", |
| help="Defines: `max-seq:max-extra-seq` number of sequences to use in one go. " |
| '"--max-seq" and "--max-extra-seq" are ignored if this parameter is set.', |
| type=str, |
| default=None, |
| ) |
| pred_group.add_argument( |
| "--disable-cluster-profile", |
| default=False, |
| action="store_true", |
| help="Experimental: For multimer models, disable cluster profiles.", |
| ) |
| pred_group.add_argument( |
| "--calc-extra-ptm", |
| default=False, |
| action="store_true", |
| help="Experimental: calculate pairwise metrics (ipTM and actifpTM), and also chain-wise pTM", |
| ) |
| pred_group.add_argument( |
| "--no-use-probs-extra", |
| default=False, |
| action="store_true", |
| help="Experimental: instead of contact probabilities form use binary contacts for extra metrics calculation", |
| ) |
| pred_group.add_argument("--data", help="Path to AlphaFold2 weights directory.") |
|
|
| relax_group = parser.add_argument_group("Relaxation arguments", "") |
| relax_group.add_argument( |
| "--amber", |
| default=False, |
| action="store_true", |
| help="Enable OpenMM/Amber for structure relaxation. " |
| "Can improve the quality of side-chains at a cost of longer runtime. " |
| ) |
| relax_group.add_argument( |
| "--num-relax", |
| help="Specify how many of the top ranked structures to relax using OpenMM/Amber. " |
| "Typically, relaxing the top-ranked prediction is enough and speeds up the runtime. ", |
| type=int, |
| default=0, |
| ) |
| relax_group.add_argument( |
| "--relax-max-iterations", |
| type=int, |
| default=2000, |
| help="Maximum number of iterations for the relaxation process. " |
| "AlphaFold2 sets this to unlimited (0), however, we found that this can lead to very long relaxation times for some inputs.", |
| ) |
| relax_group.add_argument( |
| "--relax-tolerance", |
| type=float, |
| default=2.39, |
| help="Tolerance threshold for relaxation convergence.", |
| ) |
| relax_group.add_argument( |
| "--relax-stiffness", |
| type=float, |
| default=10.0, |
| help="Stiffness parameter for relaxation.", |
| ) |
| relax_group.add_argument( |
| "--relax-max-outer-iterations", |
| type=int, |
| default=3, |
| help="Maximum number of outer iterations for the relaxation process.", |
| ) |
| relax_group.add_argument( |
| "--use-gpu-relax", |
| default=False, |
| action="store_true", |
| help="Run OpenMM/Amber on GPU instead of CPU. " |
| "This can significantly speed up the relaxation runtime, however, might lead to compatibility issues with CUDA. " |
| "Unsupported on AMD/ROCM and Apple Silicon.", |
| ) |
|
|
| output_group = parser.add_argument_group("Output arguments", "") |
| output_group.add_argument( |
| "--rank", |
| help='Choose metric to rank the "--num-models" predicted models.', |
| type=str, |
| default="auto", |
| choices=["auto", "plddt", "ptm", "iptm", "multimer"], |
| ) |
| output_group.add_argument( |
| "--stop-at-score", |
| help="Compute models until pLDDT (single chain) or pTM-score (multimer) > threshold is reached. " |
| "This speeds up prediction by running less models for easier queries.", |
| type=float, |
| default=100, |
| ) |
| output_group.add_argument( |
| "--jobname-prefix", |
| help="If set, the jobname will be prefixed with the given string and a running number, instead of the input headers/accession.", |
| type=str, |
| default=None, |
| ) |
| output_group.add_argument( |
| "--save-all", |
| default=False, |
| action="store_true", |
| help="Save all raw outputs from model to a pickle file. " |
| "Useful for downstream use in other models." |
| ) |
| output_group.add_argument( |
| "--save-recycles", |
| default=False, |
| action="store_true", |
| help="Save all intermediate predictions at each recycle iteration.", |
| ) |
| output_group.add_argument( |
| "--save-single-representations", |
| default=False, |
| action="store_true", |
| help="Save the single representation embeddings of all models.", |
| ) |
| output_group.add_argument( |
| "--save-pair-representations", |
| default=False, |
| action="store_true", |
| help="Save the pair representation embeddings of all models.", |
| ) |
| def comma_separated_list(arg_string): |
| return [item.strip() for item in arg_string.split(',') if item.strip() in ['msa', 'plots', 'pae_json']] |
| output_group.add_argument( |
| "--skip-output", |
| help="Comma-separated list of output types to skip: msa, plots, pae_json.", |
| type=comma_separated_list, |
| default="", |
| ) |
| output_group.add_argument( |
| "--overwrite-existing-results", |
| default=False, |
| action="store_true", |
| help="Do not recompute results, if a query has already been predicted.", |
| ) |
| output_group.add_argument( |
| "--zip", |
| default=False, |
| action="store_true", |
| help="Zip all results into one <jobname>.result.zip and delete the original files.", |
| ) |
| output_group.add_argument( |
| "--sort-queries-by", |
| help="Sort input queries by: none, length, random. " |
| "Sorting by length speeds up prediction as models are recompiled less often.", |
| type=str, |
| default="length", |
| choices=["none", "length", "random"], |
| ) |
|
|
| adv_group = parser.add_argument_group( |
| "Advanced arguments", "" |
| ) |
| adv_group.add_argument( |
| "--host-url", |
| default=DEFAULT_API_SERVER, |
| help="Which MSA server should be queried. By default, the free public MSA server hosted by the ColabFold team is queried. " |
| ) |
| adv_group.add_argument( |
| "--disable-unified-memory", |
| default=False, |
| action="store_true", |
| help="If you are getting TensorFlow/Jax errors, it might help to disable this.", |
| ) |
| adv_group.add_argument( |
| "--recompile-padding", |
| type=int, |
| default=10, |
| help="Whenever the input length changes, the model needs to be recompiled. " |
| "We pad sequences by the specified length, so we can e.g., compute sequences from length 100 to 110 without recompiling. " |
| "Individual predictions will become marginally slower due to longer input, " |
| "but overall performance increases due to not recompiling. " |
| "Set to 0 to disable.", |
| ) |
| adv_group.add_argument( |
| "--debug-logging", |
| default=False, |
| action="store_true", |
| help="Enable debug message logging.", |
| ) |
|
|
| af3_group = parser.add_argument_group( |
| "AlphaFold3 arguments", "" |
| ) |
| af3_group.add_argument( |
| "--af3-json", |
| help="Generate input JSON for AlphaFold3 from the provided FASTA/A3M file.", |
| action="store_true", |
| ) |
| |
| args = parser.parse_args() |
|
|
| if (args.custom_template_path is not None) and (args.pdb_hit_file is not None): |
| raise RuntimeError("Arguments --pdb-hit-file and --custom-template-path cannot be used simultaneously.") |
| |
| if args.disable_unified_memory: |
| for k in ENV.keys(): |
| if k in os.environ: del os.environ[k] |
|
|
| setup_logging(Path(args.results).joinpath("log.txt"), verbose=args.debug_logging) |
|
|
| version = importlib_metadata.version("colabfold") |
| commit = get_commit() |
| if commit: |
| version += f" ({commit})" |
|
|
| logger.info(f"Running colabfold {version}") |
|
|
| data_dir = Path(args.data or default_data_dir) |
|
|
| queries, is_complex = get_queries(args.input, args.sort_queries_by) |
|
|
| has_per_entry_templates = any(isinstance(q[3], Path) for q in queries) |
| if has_per_entry_templates and args.custom_template_cache_path is None: |
| raise ValueError("--custom-template-cache-path must be set when using per-entry template paths in CSV input") |
| if has_per_entry_templates and args.custom_template_path is not None: |
| raise ValueError("--custom-template-path and per-entry template paths in CSV input cannot be used simultaneously") |
|
|
| model_type = set_model_type(is_complex, args.model_type) |
|
|
| |
| if args.initial_guess is not None: |
| if isinstance(args.initial_guess, str) and Path(args.initial_guess).suffix in (".pdb", ".cif"): |
| initial_guess = args.initial_guess |
| elif Path(args.input).suffix in (".pdb", ".cif"): |
| initial_guess = args.input |
| else: |
| raise ValueError("Provide PDB or CIF file for initial guess.") |
| else: |
| initial_guess = None |
|
|
| if args.msa_only: |
| args.num_models = 0 |
|
|
| if args.num_models > 0: |
| download_alphafold_params(model_type, data_dir) |
|
|
| if args.msa_mode != "single_sequence" and not args.templates: |
| uses_api = any((query[2] is None for query in queries)) |
| if uses_api and args.host_url == DEFAULT_API_SERVER: |
| print(ACCEPT_DEFAULT_TERMS, file=sys.stderr) |
|
|
| model_order = [int(i) for i in args.model_order.split(",")] |
|
|
| assert args.recompile_padding >= 0, "Can't apply negative padding" |
|
|
| |
| if args.amber and args.num_relax == 0: |
| args.num_relax = args.num_models * args.num_seeds |
|
|
| |
| use_probs_extra = False if args.no_use_probs_extra else True |
|
|
| user_agent = f"colabfold/{version}" |
|
|
| if args.af3_json: |
| generate_af3_input( |
| queries=queries, |
| result_dir=args.results, |
| msa_mode=args.msa_mode, |
| pair_mode=args.pair_mode, |
| pairing_strategy=args.pair_strategy, |
| use_templates=args.templates, |
| custom_template_path=args.custom_template_path, |
| jobname_prefix=args.jobname_prefix, |
| host_url=args.host_url, |
| user_agent=user_agent, |
| max_template_date=args.max_template_date, |
| max_template_hits=args.max_template_hits, |
| |
| ) |
| return |
| |
| run( |
| queries=queries, |
| result_dir=args.results, |
| use_templates=args.templates, |
| custom_template_path=args.custom_template_path, |
| custom_template_cache_path=args.custom_template_cache_path, |
| num_relax=args.num_relax, |
| relax_max_iterations=args.relax_max_iterations, |
| relax_tolerance=args.relax_tolerance, |
| relax_stiffness=args.relax_stiffness, |
| relax_max_outer_iterations=args.relax_max_outer_iterations, |
| msa_mode=args.msa_mode, |
| model_type=model_type, |
| num_models=args.num_models, |
| num_recycles=args.num_recycle, |
| recycle_early_stop_tolerance=args.recycle_early_stop_tolerance, |
| num_ensemble=args.num_ensemble, |
| model_order=model_order, |
| initial_guess=initial_guess, |
| is_complex=is_complex, |
| keep_existing_results=not args.overwrite_existing_results, |
| rank_by=args.rank, |
| pair_mode=args.pair_mode, |
| pairing_strategy=args.pair_strategy, |
| data_dir=data_dir, |
| host_url=args.host_url, |
| user_agent=user_agent, |
| random_seed=args.random_seed, |
| num_seeds=args.num_seeds, |
| stop_at_score=args.stop_at_score, |
| recompile_padding=args.recompile_padding, |
| zip_results=args.zip, |
| save_single_representations=args.save_single_representations, |
| save_pair_representations=args.save_pair_representations, |
| skip_output=args.skip_output, |
| use_dropout=args.use_dropout, |
| max_seq=args.max_seq, |
| max_extra_seq=args.max_extra_seq, |
| max_msa=args.max_msa, |
| pdb_hit_file=args.pdb_hit_file, |
| local_pdb_path=args.local_pdb_path, |
| use_cluster_profile=not args.disable_cluster_profile, |
| use_gpu_relax = args.use_gpu_relax, |
| jobname_prefix=args.jobname_prefix, |
| save_all=args.save_all, |
| save_recycles=args.save_recycles, |
| calc_extra_ptm=args.calc_extra_ptm, |
| use_probs_extra=use_probs_extra, |
| max_template_date=args.max_template_date, |
| max_template_hits=args.max_template_hits, |
| ) |
|
|
| if __name__ == "__main__": |
| main() |
|
|