ProtParamJS

ProtParamJS is a JavaScript version of ProtParam, and ProtParam is a tool to analyze a protein from several kinds of point of view.

ExPASy defines ProtParam as follows:

ProtParam (References / Documentation) is a tool which allows the computation of various physical and chemical parameters for a given protein stored in Swiss-Prot or TrEMBL or for a user entered protein sequence. The computed parameters include the molecular weight, theoretical pI, amino acid composition, atomic composition, extinction coefficient, estimated half-life, instability index, aliphatic index and grand average of hydropathicity (GRAVY) (Disclaimer).

Installation

CDN

<script src="https://cdn.jsdelivr.net/npm/protparamjs@1.0.1/protparam.js"></script>

NPM

npm install protparamjs

Quick Start

protparam = new ProtParam('AQEEGGGAS')

Web App

You can apply ProtParamJS and compare several proteins on the web browser at https://kyu999.github.io/ProtParamJS/

<img src="webapp_image.png">

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Reference

• BioPython
• ExPASy - ProtParam tool