Protein Structure Prediction and Composition Analysis

A lightweight pipeline to download, parse, and analyze protein structures using their PDB IDs. Built with Biopython, it enables inspection of chain organization and amino acid composition from 3D protein data fetched from RCSB PDB.

Features

• Downloads .pdb files directly from RCSB PDB
• Parses protein structures using Biopython
• Identifies chains and residues in the model
• Computes amino acid composition (e.g., GLY, ALA, LEU counts)
• Works in both command-line and interactive mode

Usage

Interactive mode:

python protein_parser.py

Command-line mode:

python protein_parser.py 8WIX

Project Structure

protein-structure-prediction/
├── sample_data/
│   └── 8WIX.pdb              Sample structure for testing
├── protein_parser.py          Main Python script
└── README.md

Sample Output

Downloaded 8WIX.pdb successfully!
Structure Summary for 8WIX
  Chains Found: 2
  Total Residues: 284
  Amino Acid Composition:
    GLY: 35
    ALA: 20
    LEU: 40
    SER: 18
    ...

Requirements

• Python 3.7+
• Biopython
• requests

pip install biopython requests

License

MIT License. See LICENSE for details.