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license: cc-by-nc-sa-2.0
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<div align='center'>
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<h1> MolCRAFT Series for Drug Design </h1>
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[](https://MolCRAFT-GenSI.github.io/)
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[](https://drive.google.com/drive/folders/16KiwfMGUIk4a6mNU20GnUd0ah-mjNlhC?usp=share_link)
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Welcome to the official repository for the MolCRAFT series of projects! This series focuses on developing and improving deep learning models for **structure-based drug design (SBDD)** and **molecule optimization (SBMO)**. Our goal is to create molecules with high binding affinity and plausible 3D conformations.
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This repository contains the source code for the following projects:
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* [**MolCRAFT**: Structure-Based Drug Design in Continuous Parameter Space](https://arxiv.org/abs/2404.12141) (ICML'24)
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* [**MolJO**: Empower Structure-Based Molecule Optimization with Gradient
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* [**MolPilot**: Piloting Structure-Based Drug Design via Modality-Specific Optimal Schedule](https://arxiv.org/abs/2505.07286) (ICML'25)
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## 📜 Overview
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### MolCRAFT (Let's Craft the Molecules)
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<p align="center"><img src="asset/molcraft.gif" width="60%"></p>
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* **Description**: MolCRAFT is the first SBDD model that employs BFN and operates in a **continuous parameter space**. It introduces a novel noise-reduced sampling strategy to generate molecules with superior binding affinity and more stable 3D structures. MolCRAFT has demonstrated its ability to accurately model interatomic interactions, achieving reference-level Vina Scores.
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* **Key Contributions**:
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* Operates in continuous parameter space for SBDD within BFN framework.
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* Novel variance reduction sampling strategy that improves both sample quality and efficiency.
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* Achieves state-of-the-art binding affinity and structural stability.
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### MolJO (Molecule Joint Optimization)
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* **Description**: MolJO is a gradient-based SBMO framework that leverages a continuous and differentiable space derived through Bayesian inference. It facilitates **joint guidance signals across different modalities** (continuous coordinates and discrete atom types) while preserving SE(3)-equivariance. MolJO introduces a novel backward correction strategy for an effective trade-off between exploration and exploitation.
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* **Key Contributions**:
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* Gradient-based SBMO framework with joint guidance across different modalities.
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* Backward correction strategy for optimized exploration-exploitation.
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* State-of-the-art performance in practical optimization tasks, including multi-objective and constrained optimization for R-group redesign, scaffold hopping, etc.
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### MolPilot (How to Pilot the Aircraft)
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* **Description**: MolPilot addresses challenges in geometric structure modeling by focusing on the **twisted probability path of multi-modalities** (continuous 3D positions and discrete 2D topologies). It proposes a VLB-Optimal Scheduling (VOS) strategy, optimizing the Variational Lower Bound as a path integral for SBDD. MolPilot significantly enhances molecular geometries and interaction modeling.
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* **Key Contributions**:
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* Addresses multi-modality challenges in SBDD.
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* Introduces VLB-Optimal Scheduling (VOS) strategy, generally applicable to a wide range of frameworks including diffusions.
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* Achieves 95.9% PoseBusters passing rate on CrossDock with significantly improved molecular geometries.
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# MolJO
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Official implementation of ICML 2025 ["Empower Structure-Based Molecule Optimization with Gradient Guidance"](https://arxiv.org/abs/2411.13280).
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](https://github.com/AlgoMole/MolCRAFT/tree/master)
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[](https://MolCRAFT-GenSI.github.io/)
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[](https://drive.google.com/drive/folders/16KiwfMGUIk4a6mNU20GnUd0ah-mjNlhC?usp=share_link)
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</div>
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Welcome to the official repository for the MolCRAFT series of projects! This series focuses on developing and improving deep learning models for **structure-based drug design (SBDD)** and **molecule optimization (SBMO)**. Our goal is to create molecules with high binding affinity and plausible 3D conformations.
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This repository contains the source code for the following projects:
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* [**MolCRAFT**: Structure-Based Drug Design in Continuous Parameter Space](https://arxiv.org/abs/2404.12141) (ICML'24)
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* [**MolJO**: Empower Structure-Based Molecule Optimization with Gradient Guided Bayesian Flow Networks](https://arxiv.org/abs/2411.13280) (ICML'25)
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* [**MolPilot**: Piloting Structure-Based Drug Design via Modality-Specific Optimal Schedule](https://arxiv.org/abs/2505.07286) (ICML'25)
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## 📜 Overview
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# 🚀 MolJO
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Official implementation of ICML 2025 ["Empower Structure-Based Molecule Optimization with Gradient Guided Bayesian Flow Networks"](https://arxiv.org/abs/2411.13280).
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## Environment
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It is highly recommended to install via docker if a Linux server with NVIDIA GPU is available.
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