Comet parameter: clip_nterm_aa

• This parameter controls whether Comet will automatically remove the N-terminal amino acid from every digest peptide before analysis.
• If set to 0, the sequence is analyzed as-is.
• If set to 1, peptides will be generated based on the enzyme digestion rule and then the n-terminal amino acid will be removed before analysis.
• Valid values are 0 and 1.
• The default value is “0” if this parameter is missing.
• Added in release 2022.01.0.

Example:

clip_nterm_aa= 0
clip_nterm_aa= 1