Parameter: aa_mass


This parameter requires two values. The first value is a single character identifier for an amino acid. The second value is the monoisotopic mass value to use for that amino acid.

This parameter can be used multiple times to specify different amino acids and their masses. Use of this paramter is optional: all amino acids have default mass values. Use of this paramter will replace those default mass values with the value specified.

Pro Tip This parameter can be used to modify the mass of non-canonical amino acids (such as 'X') to include them in your Magnum analysis.


[Text] [Number]


1.0.0 - present


To change the mass of all alanine residues:

aa_mass = A 71.02