New Modification
Type
The type of ptm has to be specified according to OMSSA standards:
- modaa -- modification at particular amino acids
- modn -- at the N terminus of a protein
- modnaa -- at the N terminus of a protein at particular amino acids
- modc -- at the C terminus of a protein
- modcaa -- at the C terminus of a protein at particular amino acids
- modnp -- at the N terminus of a peptide
- modnpaa -- at the N terminus of a peptide at particular amino acids
- modcp -- at the C terminus of a peptide
- modcpaa -- at the C terminus of a peptide at particular amino acids
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Name
The name of the ptm should be unique and not contain '_'.
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Mass
Please type here the monoisotopic mass of the modification. Average mass is currently not
supported. If needed, please contact the developers.
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Residues
For some types of modification, it is necessary to specify the amino acids concerned by the
modification. Please type the single letter coded amino-acids separated by a comma (for example: "S, T, Y").
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PSI-MOD Mapping
If the search results are to be later opened in PeptideShaker and then submitted to
PRIDE it is recommended to map the user defined modifications to the standard PSI-MOD
modifications. This ensures that the given modification is understood in the same way by all users.
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