js-unimod

This module provides access to Unimod modifications.

The modifications were retrieved from the Unimod website on May 17th, 2018. The file "unimod.obo" (format-version 1.2, date 2018:04:17) is used by this module to provide the data.

Installation

npm install peptide-modifier --save

Usage

var unimod = require('js-unimod');

var oxidation = unimod.getByName('oxidation');
/*
{
    "id": "35",
    "name": "Oxidation",
    "mono_mass": 15.994915,
    "avge_mass": 15.9994,
    "composition": "O"
}
*/
var biotin = unimod.getById(3);
/*
{
    "id": "3",
    "name": "Biotin",
    "mono_mass": 226.077598,
    "avge_mass": 226.2954,
    "composition": "H(14) C(10) N(2) O(2) S"
}
*/
var modifications = unimod.listMods();
/*
Returns an array of all the modification names
[ 'acetyl',
  'amidated',
  'biotin',
  'carbamidomethyl',
  'carbamyl',
  'carboxymethyl',
  'deamidated',
  'icat-g',
  'icat-g:2h(8)',
  'met->hse',
  'met->hsl',
  'icat-d:2h(8)',
  'icat-d',
  'nipcam',
  ... ]
*/

Data are returned as JavaScript objects with the following fields:

• id
• name
• mono_mass
• avge_mass
• composition

Tests

You can run npm test to run the tests after installing the development dependencies.

Future functionality

No future functionality is planned.

License

This software is released under the MIT license.

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