根据预测的目标推荐使用相应的模块，包括蛋白质结构预测、抗体-抗原复合物结构预测、蛋白-小分子复合物结构预测、完整抗体IgG结构预测、环肽结构预测和RNA结构预测等。推荐使用AlphaFold3 like结构预测模型Protenix、Boltz-1、Chai-1、HelixFold3等，这些模型在常规的蛋白质结构、小分子配体、核酸分子（包括DNA和RNA）的预测精度上与AF3相当。

教程

结构预测介绍文档

Based on the predicted targets, it is recommended to use the corresponding modules, including protein structure prediction, antibody-antigen complex structure prediction, protein-small molecule complex structure prediction, full antibody IgG structure prediction, cyclic peptide structure prediction, and RNA structure prediction, etc. It is recommended to use structure prediction models like AlphaFold3, such as Protenix, Boltz-1, Chai-1, and HelixFold3. These models achieve prediction accuracy comparable to AF3 for conventional protein structures, small molecule ligands, and nucleic acid molecules (including DNA and RNA).

Tutorial

Structure Prediction Introduction Document

对于入门用户，可使用

• 全自动抗体人源化流程Antibody Humanization v4.3
• 纳米抗体人源化流程Nanobody Humanization v4.3；

人源化流程介绍文档

对于有经验的用户，建议使用WeSeq中的交互式人源化设计面板：WeSeq->Humanization，可以基于人工经验调整人源化设计方案，实时对照结构进行更精细化的设计。

人源化-WeSeq介绍文档

For beginner users, the following can be used:

• Fully Automatic Antibody Humanization Process Antibody Humanization v4.3
• Nanobody Humanization Process Nanobody Humanization v4.3

Humanization Process Introduction Document

For experienced users, it is recommended to use the interactive humanization design panel in WeSeq: WeSeq->Humanization, which allows for manual adjustment of the humanization design scheme based on experience and real-time comparison with the structure for more refined design.

Humanization-WeSeq Introduction Document

免疫原性预测已经历多个版本迭代，目前应用版本为：WeADApt v4.1.0, AlphaMHC v3.0 beta, AlphaMHC v2.0。

同时也可以从WeSeq中提交预测：WeSeq->Immunogenicity，界面更友好（推荐v4）。

免疫原性介绍文档

Immunogenicity prediction has undergone multiple iterations, and the currently applied versions are:

• WeADApt v4.1.0
• AlphaMHC v3.0 beta
• AlphaMHC v2.0

You can also submit predictions from WeSeq: WeSeq->Immunogenicity, which offers a more user-friendly interface (supports v2/v3/v4).

Immunogenicity Introduction Document

• 基于复合物结构的方法
  针对复合物结构的相互作用界面进行饱和突变或进化优势突变，再用物理方法计算能量。建议使用亲和力成熟流程：

  • 抗体亲和力成熟，使用Antibody Virtual Affinity Maturation v3.1

  • 蛋白亲和力成熟，使用Protein Virtual Affinity Maturation v2.1

    亲和力成熟介绍文档

• 基于配体的方法
  建议使用模块AA Probability Prediction，大语言模型预测高概率AA。主要是利用大语言模型和配体的序列（或结构）直接推荐高适应性（fitness）突变。

• 蛋白复合物亲和力的相对结合自由能计算，可使用Protein FEP。

• 基于ESMIF逆折叠模型，预测能提升结构亲和力的单点或多点突变，可使用Structure Evolution。

Methods Based on Complex Structure

For interaction interfaces of complex structures, perform saturation mutations or evolutionarily advantageous mutations, then use physical methods to calculate energy. It is recommended to use the affinity maturation workflows:

• For antibody affinity maturation, use Antibody Virtual Affinity Maturation v3.1.

• For protein affinity maturation, use Protein Virtual Affinity Maturation v2.1.

  Affinity Maturation Introduction Document

Methods Based on Ligands

It is recommended to use the module AA Probability Prediction, where large language models predict high-probability amino acids (AAs). This mainly utilizes large language models and the sequence (or structure) of ligands to directly recommend high-fitness mutations.

Calculation of Relative Binding Free Energy of Protein Complex Affinity

You can use Protein FEP.

热稳定性与蛋白的折叠自由能正相关，可能影响表达、纯度、PK等，优化方式包括基于物理的能量计算和ML/AI模型。

• 优化抗体稳定性，可使用Antibody Stability Optimization v3.1或Antibody Stability Optimization v3.0 plus MD或。
  抗体稳定性优化流程介绍文档

• 优化蛋白稳定性，可使用Protein Stability Optimization v3.1或Protein Stability Optimization v3.0 plus MD。
  蛋白稳定性优化流程介绍文档

• 预测蛋白质的绝对稳定性，可使用Absolute Folding Stability。
  蛋白绝对稳定性预测介绍文档

• 预测蛋白稳定性相对结合自由能，可使用Protein FEP。

• 基于ThermoMPNN模型预测蛋白质单点突变的稳定性变化，可使用Mutation Energy of Stability (ThermoMPNN)。

• 基于序列预测蛋白中潜在的PTM位点，可使用PTM Hotspot by Sequence。建议在WeSeq中进行分析：WeSeq->PTM。

  

• 基于结构预测蛋白中潜在的PTM位点，可使用PTM Hotspot by Structure。

• 基于ESMIF逆折叠模型，预测能提升结构稳定性的单点或多点突变，可使用Structure Evolution。

Thermal stability is positively correlated with the folding free energy of proteins, which may affect expression, purity, pharmacokinetics (PK), etc. Optimization methods include physics-based energy calculations and ML/AI models.

• To optimize antibody stability, you can use Antibody Stability Optimization v3.0 or Antibody Stability Optimization v3.0 plus MD.
  Antibody Stability Optimization Process Introduction Document

• To optimize protein stability, you can use Protein Stability Optimization v3.0 or Protein Stability Optimization v3.0 plus MD.
  Protein Stability Optimization Process Introduction Document

• To predict the absolute stability of proteins, you can use Absolute Folding Stability.
  Absolute Folding Stability Prediction Introduction Document

• To predict the relative binding free energy of protein stability, you can use Protein FEP.

• To predict the stability changes of protein single-point mutations based on the ThermoMPNN model, you can use Mutation Energy of Stability (ThermoMPNN).

• To predict potential PTM sites in proteins based on sequence, you can use PTM Hotspot by Sequence. It is recommended to perform the analysis in WeSeq: WeSeq -> PTM.

  

• To predict potential PTM sites in proteins based on structure, you can use PTM Hotspot by Structure.

可开发性包括蛋白表面patch分析、理化性质计算（含pI）、TAP原则、PTM（基于序列）、基于结构的异构化预测、断裂位点预测等。

• 成药性一键综合评价

  • 进行成药性一键综合评价，可以使用抗体可开发性预测流程，Antibody Developability Properties v4或Antibody Developability Properties v3。

  • 同时，也可以在WeSeq中进行抗体可开发性预测分析，WeSeq->Developability->Antibody General Evaluation。

    

• Patch分析

  • 建议从WeView中运行：WeView->Analysis->Patch。Patch分析介绍文档

    

• PTM预测

  • 基于序列的PTM预测，建议直接在WeSeq运行：WeSeq->PTM。PTM预测介绍文档

    

  • 基于结构的PTM预测，可以直接在模块中运行PTM Hotspot by Structure。

• 抗体成药性预测（TAP）

  • 可以直接在模块中运行Therapeutic Antibody Profiler。TAP介绍文档

• 溶解度预测

  • 可以直接在模块中运行，Solubility Score，Solubility Score (CamSol)。溶解度预测介绍文档

• 聚集度预测

  • 可以直接在模块中运行，Aggregation Score。聚集度预测介绍文档

Developability includes protein surface patch analysis, physicochemical property calculations (including pI), TAP principles, PTM (based on sequence), structure-based isomerization prediction, cleavage site prediction, etc.

Antibody Developability Properties

• For a comprehensive evaluation of druggability, you can use the antibody developability prediction workflows, Antibody Developability Properties v4 or Antibody Developability Properties v3.

• Additionally, you can perform antibody developability prediction analysis in WeSeq: WeSeq -> Developability -> Antibody General Evaluation.

  

Patch Analysis

• It is recommended to run from WeView: WeView -> Analysis -> Patch. Patch Analysis Introduction Document

  

PTM Prediction

• For sequence-based PTM prediction, it is recommended to run directly in WeSeq: WeSeq -> PTM. PTM Prediction Introduction Document

  

• For structure-based PTM prediction, you can run directly in the module PTM Hotspot by Structure.

Antibody Developability Prediction (TAP)

• You can run directly in the module Therapeutic Antibody Profiler. TAP Introduction Document

Solubility Prediction

• You can run directly in the module Solubility Score or Solubility Score (CamSol). Solubility Prediction Introduction Document

Aggregation Prediction

• You can run directly in the module Aggregation Score. Aggregation Prediction Introduction Document

序列分析包括序列编号、多序列比对、测序数据分析、频率分析、序列突变等。

• 序列编号
  进行抗体序列编号，建议在WeSeq中运行：WeSeq->Number。序列编号介绍文档

  

• 多序列比对
  进行多序列比对，建议在WeSeq中运行：WeSeq->Align。多序列比对介绍文档

  

• 测序数据分析
  进行测序数据分析，可以使用NGS Analysis。NGS Analysis介绍文档

• 频率分析
  进行频率分析，建议在WeSeq运行，WeSeq->Frequency。频率分析介绍文档

  

• 序列突变
  进行序列突变，建议在WeSeq中操作：WeSeq->Edit->Batch Mutate。或者使用Sequence Mutation模块。

  

Sequence analysis includes sequence numbering, multiple sequence alignment, sequencing data analysis, frequency analysis, and sequence mutations.

Sequence Numbering

For antibody sequence numbering, it is recommended to run in WeSeq: WeSeq -> Number. Sequence Numbering Introduction Document

Multiple Sequence Alignment

For multiple sequence alignment, it is recommended to run in WeSeq: WeSeq -> Align. Multiple Sequence Alignment Introduction Document

Sequencing Data Analysis

For sequencing data analysis, you can use NGS Analysis. NGS Analysis Introduction Document

Frequency Analysis

For frequency analysis, it is recommended to run in WeSeq: WeSeq -> Frequency. Frequency Analysis Introduction Document

Sequence Mutation

For sequence mutation, it is recommended to operate in WeSeq: WeSeq -> Edit -> Batch Mutate. Alternatively, you can use the Sequence Mutation module.

专利分析包括专利抗体CDR序列搜索、专利序列提取、专利图片OCR。专利分析介绍文档

• 进行专利抗体CDR序列搜索，可以应用Patent BLAST。

• 从专利文本文件或专利序列图片OCR提取专利序列，可以应用Patent Sequence Listing。

Patent analysis includes searching for antibody CDR sequences in patents, extracting patent sequences, and performing OCR on patent images. Patent Analysis Introduction Document

Patent Antibody CDR Sequence Search

To search for antibody CDR sequences in patents, you can use Patent CDR BLAST.

Extracting Patent Sequences

To extract sequences from patent text files or perform OCR on patent sequence images, you can use Patent Sequence Listing.

• 从头结构生成
  进行蛋白结构从头生成，可以应用Protein Design (RFDiffusion)。RFDiffusion介绍文档

• 基于主链结构设计序列（逆折叠）

  • ProteinMPNN，建议从WeSeq中运行：WeSeq->Design->ProteinMPNN。ProteinMPNN介绍文档

    

  • ABACUS-R，可以使用Protein Design (ABACUS-R)。

  • RFDesign，可以使用Protein Design (RFDesign)。RFDesign介绍文档。

  • ESMIF逆折叠模型，可使用Structure Evolution。

De Novo Protein Structure Generation

To perform de novo protein structure generation, you can use Protein Design (RFDiffusion). RFDiffusion Introduction Document

Sequence Design Based on Backbone Structure (Inverse Folding)

1. ProteinMPNN

   • To design sequences based on the backbone structure, you can use ProteinMPNN. It is recommended to run it in WeSeq: WeSeq -> Design -> ProteinMPNN. ProteinMPNN Introduction Document

   

2. ABACUS-R

   • You can use Protein Design (ABACUS-R) for sequence design based on backbone structures.

3. RFDesign

   • To use RFDesign for sequence design, you can use Protein Design (RFDesign). RFDesign Introduction Document.

4. ESMIF Inverse Folding Model

   • For sequence design using ESMIF inverse folding model, you can use Structure Evolution.

• RFAntibody
  是基于RFAntibody（抗体微调版RFdiffusion）的抗体从头设计。Antibody Design (RFAntibody)。

• MEAN模型
  基于MEAN模型实现的抗体设计，该模型采用多通道等变图注意力网络，可用于设计CDR的一维序列和三维结构。Antibody Design (MEAN)。

• DiffAb模型
  基于扩散概率模型和等价神经网络的抗体设计，可针对特定抗原结构生成抗体，也可基于抗体-抗原复合物结构进行抗体结构和序列的优化。Antibody Design (DiffAb)。

• RFAntibody
  RFAntibody is an antibody de novo design method based on the fine-tuned version of RFdiffusion. Antibody Design (RFAntibody).

• MEAN Model
  The MEAN model enables antibody design using a multi-channel equivariant graph attention network, which can be used to design both the one-dimensional sequence and three-dimensional structure of CDRs. Antibody Design (MEAN).

• DiffAb Model
  The DiffAb model utilizes diffusion probabilistic models and equivariant neural networks for antibody design. It can generate antibodies specific to a given antigen structure and optimize antibody structure and sequence based on antibody-antigen complex structures. Antibody Design (DiffAb).

多肽分析包括线性肽/环肽结构预测、多肽对接筛选、线性肽/环肽设计、信号肽预测。

• 进行线性肽结构预测，可以应用Peptide Structure Generation。
• 进行环肽结构预测，可以应用Cyclic Peptide Structure Prediction。
• 进行基于受体蛋白的多肽对接筛选，可以应用Peptide VS。
• 进行环肽设计，可以应用Cyclic Peptide Design。
• 进行线性肽设计，可以应用Receptor-Based Peptide Design。
• 进行信号肽预测，可以应用Signal Peptide Prediction。

Peptide analysis includes linear/cyclic peptide structure prediction, peptide docking screening, linear/cyclic peptide design, and signal peptide prediction.

• For linear peptide structure prediction, you can use Peptide Structure Generation.
• For cyclic peptide structure prediction, you can use Cyclic Peptide Structure Prediction.
• For peptide docking screening based on receptor proteins, you can use Peptide VS.
• For cyclic peptide design, you can use Cyclic Peptide Design.
• For linear peptide design, you can use Receptor-Based Peptide Design.
• For signal peptide prediction, you can use Signal Peptide Prediction.

包括密码子优化、CDS优化、UTR优化等。

• 密码子优化，可使用Codon Optimization。
• CDS及UTR优化，可使用mRNA Optimization (AlphaRNA)。
• UTR优化，可使用mRNA 5’UTRs optimization。

Including codon optimization, CDS optimization, UTR optimization, etc.

• For codon optimization, you can use Codon Optimization.
• For CDS and UTR optimization, you can use mRNA Optimization (AlphaRNA).
• For UTR optimization, you can use mRNA 5’UTRs optimization.

靶点鉴定包括疾病相关靶点提取以及小分子靶点预测模块。靶点鉴定介绍文档

• 疾病相关靶点提取，可使用Target Prioritization (OpenTargets)，可以提取疾病相关的靶点，支持多种相关性打分。
• 小分子靶点预测，可使用Target Prediction (FastTargetPred)，基于二维相似度的小分子靶点预测模块，活性分子及靶点数据来源于ChEMBL数据库。
• 指定基因在肿瘤和正常组织表达情况的检索，可使用Tumor Gene Expression (TCGA)，可统计并绘制肿瘤细胞、肿瘤组织、正常组织等的基因表达差异，帮助药物靶点选择、研发立项和决策。

Target identification includes disease-related target extraction and small molecule target prediction modules. Target Identification Introduction Document

• For disease-related target extraction, you can use Target Prioritization (OpenTargets), which extracts disease-related targets and supports multiple relevance scoring.
• For small molecule target prediction, you can use Target Prediction (FastTargetPred), a small molecule target prediction module based on 2D similarity, with active molecule and target data sourced from the ChEMBL database.
• To search for the expression of specified genes in tumor and normal tissues, you can use Tumor Gene Expression (TCGA). This tool can statistically analyze and visualize the differences in gene expression among tumor cells, tumor tissues, and normal tissues, aiding in drug target selection, research and development project initiation, and decision-making.

小分子生成是从头设计全新分子的过程，可以基于多种AI架构生成类药分子，也可以基于靶点，骨架、活性分子生成衍生物或者相似分子。分子生成介绍文档

• REINVENT4
  应用De novo Generation (REINVENT4)模块运行计算。基于阿斯利康开源的REINVENT4算法用于小分子全新生成的模块。支持多种分子生成方式：Reinvent - 从头开始创造新分子，Libinvent - 修饰一个骨架，Linkinvent - 设计两个片段之间的linker，Mol2Mol - 在用户定义的相似度范围内优化分子。
• Scaffold Constrained Generation
  应用Scaffold Constrained Generation模块运行计算。骨架限制的生成模型，可以限制骨架，指定优化部位，特异性的生成全新分子库。
• Moses
  应用De novo Generation (Moses)模块运行计算。随机类药分子生成模型，基于多种主流的分子生成模型，包括字符级循环神经网络，变分自编码器，以及对抗自编码器的分子生成模块。

Small molecular generation is the process of designing entirely new molecules from scratch. It can generate drug-like molecules based on various AI architectures, or generate derivatives or similar molecules based on targets, scaffolds, or active molecules. Molecular Generation Introduction Document

• REINVENT4
  Use the De novo Generation (REINVENT4) module for computation. This module is based on AstraZeneca’s open-source REINVENT4 algorithm for the de novo generation of small molecules. It supports various molecular generation methods: Reinvent - create new molecules from scratch, Libinvent - modify a scaffold, Linkinvent - design a linker between two fragments, Mol2Mol - optimize molecules within a user-defined similarity range.
• Scaffold Constrained Generation
  Use the Scaffold Constrained Generation module for computation. This model generates molecules with scaffold constraints, allowing the restriction of the scaffold, specifying optimization sites, and generating a new library of molecules specifically.
• Moses
  Use the De novo Generation (Moses) module for computation. This is a random drug-like molecule generation model based on various mainstream molecular generation models, including character-level recurrent neural networks, variational autoencoders, and adversarial autoencoder molecular generation modules.

虚拟筛选根据配体或受体结构，对小分子化合物进行筛选，预测可能的活性分子，大大提高化合物药物发现进程，缩减药物发现费用。

基于受体的方法

• 虚拟筛选流程 Cascaded Virtual Screening，基于配体和基于受体整合的虚拟筛选流程。

基于配体方法

• 性质过滤
  • Property Filter，根据性质过滤，包括基于相似度（2D和3D）,基于性质过滤，基于结构聚类，基于对接等。Property Filter介绍文档
  • PAINS Filter，过滤PAINS片段。PAINS Filter介绍文档
• 结构搜索
  • Substructure Search，从化合物库中查找含有特定子结构片段的化合物。
  • 2D Similarity Search，从化合物库中查找出与查询分子二维相似的化合物。二维形状搜索介绍文档
• 三维形状搜索
  • AlphaShape，从化合物库中查找出与查询分子三维形状相似的化合物，私有库需要结合3D Conf Generation (AlphaConf)模块生成筛序库的分子构象。三维形状搜索介绍文档
• 结构聚类
  • Diverse Subset，通过分子聚类，挑选具有代表性的结构多样性的分子子集，常用于基于其他筛选手段得到的分子库进行进一步挑选，减小筛选hits的数量。

Virtual screening is a computational technique used to identify potential active compounds by screening large libraries of small molecules. This process can significantly accelerate drug discovery and reduce costs.

Receptor-Based Methods

1. Virtual Screening Workflow
   • Cascaded Virtual Screening: An integrated virtual screening workflow that combines ligand-based and receptor-based methods.

Ligand-Based Methods

1. Property Filtering

   • Property Filter: Filters compounds based on properties such as 2D and 3D similarity, property-based filtering, structural clustering, and docking. Property Filter Introduction Document
   • PAINS Filter: Filters out compounds containing PAINS fragments. PAINS Filter Introduction Document

2. Structure Search

   • Substructure Search: Searches for compounds containing specific substructures within a compound library.
   • 2D Similarity Search: Finds compounds in a library that are 2D similar to the query molecule. 2D Similarity Search Introduction Document

3. 3D Shape Search

   • AlphaShape: Searches for compounds in a library that have a 3D shape similar to the query molecule. For private libraries, it needs to be combined with the 3D Conf Generation (AlphaConf) module to generate molecular conformations for screening. 3D Shape Search Introduction Document

4. Structure Clustering

   • Diverse Subset: Selects a representative subset of structurally diverse molecules through clustering. This is often used to further refine a set of hits obtained from other screening methods, reducing the number of hits.

分子性质包括小分子的理化性质以及药代动力学（ADMET）性质。

• 理化性质计算，建议使用Descriptors (RDKit)。理化性质计算介绍文档
• 化合物可合成性评估，建议使用Synthetic Accessibility Score。化合物可合成性评估介绍文档
• P450代谢位点预测，建议使用Metabolism Site Prediction。P450代谢位点预测介绍文档
• 毒效片段识别，建议使用Toxic Fragment Identification。毒效片段识别介绍文档
• ADMET性质预测，建议使用ADMET Prediction。ADMET介绍文档

Molecular properties include the physicochemical properties and pharmacokinetic (ADMET) properties of small molecules.

• Physicochemical Properties Calculation, recommended tool: Descriptors (RDKit). Physicochemical Properties Calculation Documentation
• Synthetic Accessibility Evaluation, recommended tool: Synthetic Accessibility Score. Synthetic Accessibility Evaluation Documentation
• P450 Metabolism Site Prediction, recommended tool: Metabolism Site Prediction. P450 Metabolism Site Prediction Documentation
• Toxic Fragment Identification, recommended tool: Toxic Fragment Identification. Toxic Fragment Identification Documentation
• ADMET Properties Prediction, recommended tool: ADMET Prediction. ADMET Prediction Documentation

分子对接是研究相互作用的重要工具，包括蛋白-小分子，蛋白-蛋白对接。

• 蛋白-小分子对接

  • AutoDock-GPU，建议从WeView中运行：WeView->Docking。基于GPU加速的AutoDock的分子对接工具。AutoDock-GPU对接介绍文档

    

  • Molecular Docking (SMINA)，基于Autodock Vina分支SMINA的分子对接工具。SMINA对接介绍文档

  • Molecular Docking (DOCK)，基于Dock6的分子对接工具。DOCK对接介绍文档

  • Molecular Docking (DiffDock)，基于扩散生成模型的对接工具。DiffDock对接介绍文档

• 蛋白-蛋白/核酸对接

  • Protein Docking (HDOCK)，支持蛋白-蛋白，蛋白-DNA/RNA对接，支持限制位点对接。
  • Protein Docking (FRODOCK)，除了常规蛋白-蛋白，还支持抗体抗原模式对接，支持限制位点对接。
  • Antibody-Antigen Docking (HADDOCK)，支持抗体抗原模式对接。

Molecular docking is an important tool for studying interactions, including protein-small molecule and protein-protein docking.

• Protein-Small Molecule Docking

  • AutoDock-GPU, recommended to run from WeView: WeView->Docking. A GPU-accelerated molecular docking tool based on AutoDock. AutoDock-GPU Docking Documentation

    

  • Molecular Docking (SMINA), a molecular docking tool based on the AutoDock Vina branch SMINA. SMINA Docking Documentation

  • Molecular Docking (DOCK), a molecular docking tool based on Dock6. DOCK Docking Documentation

  • Molecular Docking (DiffDock), a docking tool based on diffusion generative models. DiffDock Docking Documentation

• Protein-Protein/Nucleic Acid Docking

  • Protein Docking (HDOCK), supports protein-protein, protein-DNA/RNA docking, and site-specific docking.
  • Protein Docking (FRODOCK), supports not only conventional protein-protein docking but also antibody-antigen mode docking and site-specific docking.
  • Antibody-Antigen Docking (HADDOCK), supports antibody-antigen mode docking.

分子格式转换工具，包括不同格式文件转换、氨基酸字母格式转换等。

• 基于Open Babel的分子文件格式转换工具，可以使用Format Conversion (Open Babel)。
• 基于RDKit的分子文件格式转换工具，可以使用Format Conversion (RDKit)。
• 小分子构象生成工具3D Conf Generation (AlphaConf)，可将生成的二进制构象压缩文件AC.GZ转为便于查看的SDF文件。
• 氨基酸格式转换工具，可使用3-letter AA Conversion，将氨基酸缩写三字母格式转换为单字母格式。

Molecular format conversion tools, including conversion of different format files, amino acid letter format conversion, etc.

• For molecular file format conversion based on Open Babel, you can use Format Conversion (Open Babel).
• For molecular file format conversion based on RDKit, you can use Format Conversion (RDKit).
• For small molecule conformation generation, use the tool 3D Conf Generation (AlphaConf), which can convert the generated binary conformation compressed file AC.GZ to an SDF file for easy viewing.
• For amino acid format conversion, you can use 3-letter AA Conversion to convert amino acid abbreviations from three-letter format to one-letter format.

分子动力学可以观察和分析分子系统在微观尺度上的动态行为，从而建立起体系微观和宏观之间的关系。

教程

分子动力学介绍文档
蛋白-RNA互作分子动力学视频教程

Molecular dynamics can observe and analyze the dynamic behavior of molecular systems on a microscopic scale, thereby establishing the relationship between microscopic and macroscopic systems.

Tutorial

Molecular Dynamics Introduction Documentation
Protein-RNA Interaction Molecular Dynamics Video Tutorial

对PDB结构文件进行处理，包括去除杂质、补全确实原子或残基、加氢、修改链名或残基编号等。

教程

模拟结构处理介绍文档

Processing of PDB structure files includes removing impurities, completing missing atoms or residues, adding hydrogen atoms, modifying chain names or residue numbers, etc.

Tutorial

Introduction to Simulated Structure Processing Documentation

轨迹分析对分子动力学模拟后产生的轨迹进行结构分析，观察研究对象在模拟过程中的动态变化。

教程

分子动力学介绍文档

Trajectory analysis involves structural analysis of the trajectories generated from molecular dynamics simulations to observe the dynamic changes of the study object during the simulation process.

Tutorial

Molecular Dynamics Introduction Documentation

结合自由能计算是预测分子间结合强弱的重要方法。

教程

分子动力学介绍文档

Combining free energy calculations is a crucial method for predicting the strength of molecular interactions.

Tutorial

Molecular Dynamics Introduction Documentation