Amino-Acid-Composition

This repository contains Python code for calculating residue composition of amino acid sequences.

This code provides functions to:

• Calculate the count and frequency of each amino acid residue in a given sequence.
• Handle invalid amino acid characters.
• Optionally calculate the composition of hydrophobic and hydrophilic residues based on a common hydrophobicity scale (customizable).
• Analyze a list of multiple sequences and store the results for each sequence individually.

Getting Started:

1. Clone this repository:

   git clone https://github.com/ade-wagimon/residue-composition.git

2. Install required libraries (assumes pip is installed):

   pip install collections

Usage:

1. Import the functions in your Python script:

   from residue_composition import calculate_residue_composition, analyze_sequence_list

2. Single Sequence Analysis:

   sequence = "PLEASEREPRESENTTHEINFORMATION"
   
   residue_composition, amino_acid_counts, hydrophobic_count, hydrophobic_freq, hydrophilic_count, hydrophilic_freq, neutral_count, neutral_freq = calculate_residue_composition(sequence)
   
   # Access and process the results as needed

3. Multiple Sequence Analysis:

   sequences = [
       "PLEASEREPRESENTTHEINFORMATION",
       "GLOBINISAFUNCTIONALPROTEIN",
   ]
   
   sequence_analysis = analyze_sequence_list(sequences)
   
   # Access results for each sequence using the sequence ID as the key in the dictionary

Additional Notes:

• The code defines a set of valid amino acids and a hydrophobicity scale. You can modify these based on your specific needs.
• The example usage (main function) demonstrates how to use the functions and print results.

I hope this README provides a clear and concise explanation of the code's functionality and usage. Feel free to leave feedback or ask questions!