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| """Parsers for the GAF, GPA and GPI formats from UniProt-GOA. |
| |
| Uniprot-GOA README + GAF format description: |
| ftp://ftp.ebi.ac.uk/pub/databases/GO/goa/UNIPROT/README |
| |
| Gene Association File, GAF formats: |
| http://geneontology.org/docs/go-annotation-file-gaf-format-2.2/ |
| http://geneontology.org/docs/go-annotation-file-gaf-format-2.1/ |
| http://geneontology.org/docs/go-annotation-file-gaf-format-2.0/ |
| |
| Gene Product Association Data (GPA format) README: |
| http://geneontology.org/docs/gene-product-association-data-gpad-format/ |
| |
| Gene Product Information (GPI format) README: |
| http://geneontology.org/docs/gene-product-information-gpi-format/ |
| |
| Go Annotation files are located here: |
| ftp://ftp.ebi.ac.uk/pub/databases/GO/goa/ |
| """ |
|
|
| import copy |
|
|
| |
| |
| |
|
|
| GAF20FIELDS = [ |
| "DB", |
| "DB_Object_ID", |
| "DB_Object_Symbol", |
| "Qualifier", |
| "GO_ID", |
| "DB:Reference", |
| "Evidence", |
| "With", |
| "Aspect", |
| "DB_Object_Name", |
| "Synonym", |
| "DB_Object_Type", |
| "Taxon_ID", |
| "Date", |
| "Assigned_By", |
| "Annotation_Extension", |
| "Gene_Product_Form_ID", |
| ] |
|
|
| |
| GAF10FIELDS = [ |
| "DB", |
| "DB_Object_ID", |
| "DB_Object_Symbol", |
| "Qualifier", |
| "GO_ID", |
| "DB:Reference", |
| "Evidence", |
| "With", |
| "Aspect", |
| "DB_Object_Name", |
| "Synonym", |
| "DB_Object_Type", |
| "Taxon_ID", |
| "Date", |
| "Assigned_By", |
| ] |
|
|
| |
| GPA10FIELDS = [ |
| "DB", |
| "DB_Object_ID", |
| "Qualifier", |
| "GO_ID", |
| "DB:Reference", |
| "Evidence code", |
| "With", |
| "Interacting_taxon_ID", |
| "Date", |
| "Assigned_by", |
| "Annotation_Extension", |
| "Spliceform_ID", |
| ] |
|
|
| |
| GPA11FIELDS = [ |
| "DB", |
| "DB_Object_ID", |
| "Qualifier", |
| "GO_ID", |
| "DB:Reference", |
| "ECO_Evidence_code", |
| "With", |
| "Interacting_taxon_ID", |
| "Date", |
| "Assigned_by", |
| "Annotation Extension", |
| "Annotation_Properties", |
| ] |
|
|
| |
| GPI10FIELDS = [ |
| "DB", |
| "DB_subset", |
| "DB_Object_ID", |
| "DB_Object_Symbol", |
| "DB_Object_Name", |
| "DB_Object_Synonym", |
| "DB_Object_Type", |
| "Taxon", |
| "Annotation_Target_Set", |
| "Annotation_Completed", |
| "Parent_Object_ID", |
| ] |
|
|
| |
| GPI11FIELDS = [ |
| "DB_Object_ID", |
| "DB_Object_Symbol", |
| "DB_Object_Name", |
| "DB_Object_Synonym", |
| "DB_Object_Type", |
| "Taxon", |
| "Parent_Object_ID", |
| "DB_Xref", |
| "Gene_Product_Properties", |
| ] |
|
|
| |
| GPI12FIELDS = [ |
| "DB", |
| "DB_Object_ID", |
| "DB_Object_Symbol", |
| "DB_Object_Name", |
| "DB_Object_Synonym", |
| "DB_Object_Type", |
| "Taxon", |
| "Parent_Object_ID", |
| "DB_Xref", |
| "Gene_Product_Properties", |
| ] |
|
|
|
|
| def _gpi10iterator(handle): |
| """Read GPI 1.0 format files (PRIVATE). |
| |
| This iterator is used to read a gp_information.goa_uniprot |
| file which is in the GPI 1.0 format. |
| """ |
| for inline in handle: |
| if inline[0] == "!": |
| continue |
| inrec = inline.rstrip("\n").split("\t") |
| if len(inrec) == 1: |
| continue |
| inrec[5] = inrec[5].split("|") |
| inrec[8] = inrec[8].split("|") |
| yield dict(zip(GPI10FIELDS, inrec)) |
|
|
|
|
| def _gpi11iterator(handle): |
| """Read GPI 1.1 format files (PRIVATE). |
| |
| This iterator is used to read a gp_information.goa_uniprot |
| file which is in the GPI 1.1 format. |
| """ |
| for inline in handle: |
| if inline[0] == "!": |
| continue |
| inrec = inline.rstrip("\n").split("\t") |
| if len(inrec) == 1: |
| continue |
| inrec[2] = inrec[2].split("|") |
| inrec[3] = inrec[3].split("|") |
| inrec[7] = inrec[7].split("|") |
| inrec[8] = inrec[8].split("|") |
| yield dict(zip(GPI11FIELDS, inrec)) |
|
|
|
|
| def _gpi12iterator(handle): |
| """Read GPI 1.2 format files (PRIVATE). |
| |
| This iterator is used to read a gp_information.goa_uniprot |
| file which is in the GPI 1.2 format. |
| """ |
| for inline in handle: |
| if inline[0] == "!": |
| continue |
| inrec = inline.rstrip("\n").split("\t") |
| if len(inrec) == 1: |
| continue |
| inrec[3] = inrec[3].split("|") |
| inrec[4] = inrec[4].split("|") |
| inrec[8] = inrec[8].split("|") |
| inrec[9] = inrec[9].split("|") |
| yield dict(zip(GPI12FIELDS, inrec)) |
|
|
|
|
| def gpi_iterator(handle): |
| """Read GPI format files. |
| |
| This function should be called to read a |
| gp_information.goa_uniprot file. At the moment, there is |
| only one format, but this may change, so |
| this function is a placeholder a future wrapper. |
| """ |
| inline = handle.readline() |
| if inline.strip() == "!gpi-version: 1.2": |
| return _gpi12iterator(handle) |
| elif inline.strip() == "!gpi-version: 1.1": |
| |
| return _gpi11iterator(handle) |
| elif inline.strip() == "!gpi-version: 1.0": |
| |
| return _gpi10iterator(handle) |
| elif inline.strip() == "!gpi-version: 2.1": |
| |
| |
| raise NotImplementedError("Sorry, parsing GPI version 2 not implemented yet.") |
| else: |
| raise ValueError(f"Unknown GPI version {inline}\n") |
|
|
|
|
| def _gpa10iterator(handle): |
| """Read GPA 1.0 format files (PRIVATE). |
| |
| This iterator is used to read a gp_association.* |
| file which is in the GPA 1.0 format. Do not call directly. Rather, |
| use the gpaiterator function. |
| """ |
| for inline in handle: |
| if inline[0] == "!": |
| continue |
| inrec = inline.rstrip("\n").split("\t") |
| if len(inrec) == 1: |
| continue |
| inrec[2] = inrec[2].split("|") |
| inrec[4] = inrec[4].split("|") |
| inrec[6] = inrec[6].split("|") |
| inrec[10] = inrec[10].split("|") |
| yield dict(zip(GPA10FIELDS, inrec)) |
|
|
|
|
| def _gpa11iterator(handle): |
| """Read GPA 1.1 format files (PRIVATE). |
| |
| This iterator is used to read a gp_association.goa_uniprot |
| file which is in the GPA 1.1 format. Do not call directly. Rather |
| use the gpa_iterator function |
| """ |
| for inline in handle: |
| if inline[0] == "!": |
| continue |
| inrec = inline.rstrip("\n").split("\t") |
| if len(inrec) == 1: |
| continue |
| inrec[2] = inrec[2].split("|") |
| inrec[4] = inrec[4].split("|") |
| inrec[6] = inrec[6].split("|") |
| inrec[10] = inrec[10].split("|") |
| yield dict(zip(GPA11FIELDS, inrec)) |
|
|
|
|
| def gpa_iterator(handle): |
| """Read GPA format files. |
| |
| This function should be called to read a |
| gene_association.goa_uniprot file. Reads the first record and |
| returns a gpa 1.1 or a gpa 1.0 iterator as needed |
| """ |
| inline = handle.readline() |
| if inline.strip() == "!gpa-version: 1.1": |
| |
| return _gpa11iterator(handle) |
| elif inline.strip() == "!gpa-version: 1.0": |
| |
| return _gpa10iterator(handle) |
| else: |
| raise ValueError(f"Unknown GPA version {inline}\n") |
|
|
|
|
| def _gaf20iterator(handle): |
| for inline in handle: |
| if inline[0] == "!": |
| continue |
| inrec = inline.rstrip("\n").split("\t") |
| if len(inrec) == 1: |
| continue |
| inrec[3] = inrec[3].split("|") |
| inrec[5] = inrec[5].split("|") |
| inrec[7] = inrec[7].split("|") |
| inrec[10] = inrec[10].split("|") |
| inrec[12] = inrec[12].split("|") |
| yield dict(zip(GAF20FIELDS, inrec)) |
|
|
|
|
| def _gaf10iterator(handle): |
| for inline in handle: |
| if inline[0] == "!": |
| continue |
| inrec = inline.rstrip("\n").split("\t") |
| if len(inrec) == 1: |
| continue |
| inrec[3] = inrec[3].split("|") |
| inrec[5] = inrec[5].split("|") |
| inrec[7] = inrec[7].split("|") |
| inrec[10] = inrec[10].split("|") |
| inrec[12] = inrec[12].split("|") |
| yield dict(zip(GAF10FIELDS, inrec)) |
|
|
|
|
| def _gaf10byproteiniterator(handle): |
| cur_id = None |
| id_rec_list = [] |
| for inline in handle: |
| if inline[0] == "!": |
| continue |
| inrec = inline.rstrip("\n").split("\t") |
| if len(inrec) == 1: |
| continue |
| inrec[3] = inrec[3].split("|") |
| inrec[5] = inrec[5].split("|") |
| inrec[7] = inrec[7].split("|") |
| inrec[10] = inrec[10].split("|") |
| inrec[12] = inrec[12].split("|") |
| cur_rec = dict(zip(GAF10FIELDS, inrec)) |
| if cur_rec["DB_Object_ID"] != cur_id and cur_id: |
| ret_list = copy.copy(id_rec_list) |
| id_rec_list = [cur_rec] |
| cur_id = cur_rec["DB_Object_ID"] |
| yield ret_list |
| else: |
| cur_id = cur_rec["DB_Object_ID"] |
| id_rec_list.append(cur_rec) |
|
|
|
|
| def _gaf20byproteiniterator(handle): |
| cur_id = None |
| id_rec_list = [] |
| for inline in handle: |
| if inline[0] == "!": |
| continue |
| inrec = inline.rstrip("\n").split("\t") |
| if len(inrec) == 1: |
| continue |
| inrec[3] = inrec[3].split("|") |
| inrec[5] = inrec[5].split("|") |
| inrec[7] = inrec[7].split("|") |
| inrec[10] = inrec[10].split("|") |
| inrec[12] = inrec[12].split("|") |
| cur_rec = dict(zip(GAF20FIELDS, inrec)) |
| if cur_rec["DB_Object_ID"] != cur_id and cur_id: |
| ret_list = copy.copy(id_rec_list) |
| id_rec_list = [cur_rec] |
| cur_id = cur_rec["DB_Object_ID"] |
| yield ret_list |
| else: |
| cur_id = cur_rec["DB_Object_ID"] |
| id_rec_list.append(cur_rec) |
|
|
|
|
| def gafbyproteiniterator(handle): |
| """Iterate over records in a gene association file. |
| |
| Returns a list of all consecutive records with the same DB_Object_ID |
| This function should be called to read a |
| gene_association.goa_uniprot file. Reads the first record and |
| returns a gaf 2.0 or a gaf 1.0 iterator as needed |
| 2016-04-09: added GAF 2.1 iterator & fixed bug in iterator assignment |
| In the meantime GAF 2.1 uses the GAF 2.0 iterator |
| """ |
| inline = handle.readline() |
| if inline.strip() == "!gaf-version: 2.0": |
| |
| return _gaf20byproteiniterator(handle) |
| elif inline.strip() == "!gaf-version: 1.0": |
| |
| return _gaf10byproteiniterator(handle) |
| elif inline.strip() == "!gaf-version: 2.1": |
| |
| |
| return _gaf20byproteiniterator(handle) |
| elif inline.strip() == "!gaf-version: 2.2": |
| |
| |
| |
| |
| return _gaf20byproteiniterator(handle) |
| else: |
| raise ValueError(f"Unknown GAF version {inline}\n") |
|
|
|
|
| def gafiterator(handle): |
| """Iterate over a GAF 1.0 or 2.x file. |
| |
| This function should be called to read a |
| gene_association.goa_uniprot file. Reads the first record and |
| returns a gaf 2.x or a gaf 1.0 iterator as needed |
| |
| Example: open, read, interat and filter results. |
| |
| Original data file has been trimmed to ~600 rows. |
| |
| Original source ftp://ftp.ebi.ac.uk/pub/databases/GO/goa/YEAST/goa_yeast.gaf.gz |
| |
| >>> from Bio.UniProt.GOA import gafiterator, record_has |
| >>> Evidence = {'Evidence': set(['ND'])} |
| >>> Synonym = {'Synonym': set(['YA19A_YEAST', 'YAL019W-A'])} |
| >>> Taxon_ID = {'Taxon_ID': set(['taxon:559292'])} |
| >>> with open('UniProt/goa_yeast.gaf', 'r') as handle: |
| ... for rec in gafiterator(handle): |
| ... if record_has(rec, Taxon_ID) and record_has(rec, Evidence) and record_has(rec, Synonym): |
| ... for key in ('DB_Object_Name', 'Evidence', 'Synonym', 'Taxon_ID'): |
| ... print(rec[key]) |
| ... |
| Putative uncharacterized protein YAL019W-A |
| ND |
| ['YA19A_YEAST', 'YAL019W-A'] |
| ['taxon:559292'] |
| Putative uncharacterized protein YAL019W-A |
| ND |
| ['YA19A_YEAST', 'YAL019W-A'] |
| ['taxon:559292'] |
| Putative uncharacterized protein YAL019W-A |
| ND |
| ['YA19A_YEAST', 'YAL019W-A'] |
| ['taxon:559292'] |
| |
| """ |
| inline = handle.readline() |
| if inline.strip() == "!gaf-version: 2.0": |
| |
| return _gaf20iterator(handle) |
| elif inline.strip() == "!gaf-version: 2.1": |
| |
| |
| return _gaf20iterator(handle) |
| elif inline.strip() == "!gaf-version: 2.2": |
| |
| |
| |
| |
| return _gaf20iterator(handle) |
| elif inline.strip() == "!gaf-version: 1.0": |
| |
| return _gaf10iterator(handle) |
| else: |
| raise ValueError(f"Unknown GAF version {inline}\n") |
|
|
|
|
| def writerec(outrec, handle, fields=GAF20FIELDS): |
| """Write a single UniProt-GOA record to an output stream. |
| |
| Caller should know the format version. Default: gaf-2.0 |
| If header has a value, then it is assumed this is the first record, |
| a header is written. |
| """ |
| outstr = "" |
| for field in fields[:-1]: |
| if isinstance(outrec[field], list): |
| for subfield in outrec[field]: |
| outstr += subfield + "|" |
| outstr = outstr[:-1] + "\t" |
| else: |
| outstr += outrec[field] + "\t" |
| outstr += outrec[fields[-1]] + "\n" |
| handle.write(outstr) |
|
|
|
|
| def writebyproteinrec(outprotrec, handle, fields=GAF20FIELDS): |
| """Write a list of GAF records to an output stream. |
| |
| Caller should know the format version. Default: gaf-2.0 |
| If header has a value, then it is assumed this is the first record, |
| a header is written. Typically the list is the one read by fafbyproteinrec, which |
| contains all consecutive lines with the same DB_Object_ID |
| """ |
| for outrec in outprotrec: |
| writerec(outrec, handle, fields=fields) |
|
|
|
|
| def record_has(inrec, fieldvals): |
| """Accept a record, and a dictionary of field values. |
| |
| The format is {'field_name': set([val1, val2])}. |
| If any field in the record has a matching value, the function returns |
| True. Otherwise, returns False. |
| """ |
| retval = False |
| for field in fieldvals: |
| if isinstance(inrec[field], str): |
| set1 = {inrec[field]} |
| else: |
| set1 = set(inrec[field]) |
| if set1 & fieldvals[field]: |
| retval = True |
| break |
| return retval |
|
|
|
|
| if __name__ == "__main__": |
| from Bio._utils import run_doctest |
|
|
| run_doctest(verbose=0) |
|
|