class Mspire::Mzid::Modification

Attributes

avg_mass_delta[RW]

optional avg mass

location[RW]

From IdentML spec: “Location of the modification within the peptide - position in peptide sequence, counted from the N-terminus residue, starting at position 1. Specific modifications to the N-terminus should be given the location 0. Modification to the C-terminus should be given as peptide length + 1. If the modification location is unknown e.g. for PMF data, this attribute should be omitted.”

monoisotopic_mass_delta[RW]
residues[RW]

Array of residues. Specification of the residue (amino acid) on which the modification occurs. If multiple values are given, it is assumed that the exact residue modified is unknown i.e. the modification is to ONE of the residues listed. Multiple residues would usually only be specified for PMF data.