Defined in file omssa.asn
C++ class: CMSModSpec

MSModSpec ::= SEQUENCE {
    mod MSMod,  -- what is the mod
    type MSModType,  -- modification type
    name VisibleString,  -- friendly name of mod
    monomass REAL,       -- monoisotopic mass
    averagemass REAL,    -- average mass
    n15mass REAL,        -- monoisotopic n15 mass
    residues SEQUENCE OF VisibleString OPTIONAL,  -- residues to apply mod to
    neutralloss MSMassSet OPTIONAL,  -- loss after precursor mass determination
    unimod INTEGER OPTIONAL,         -- the equivalent Unimod Accession number
    psi-ms VisibleString OPTIONAL    -- the PSI-MS equivalent name