MASCOT MS/MS Ions Search
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Database(s) Enzyme
Allow up to missed cleavages
Quantitation
Taxonomy
Fixed
modifications

     
Variable
modifications

Peptide tol. ±    13C  MS/MS tol. ±
Peptide charge Monoisotopic   Average 
Data file
Data format Precursor  m/z
Instrument Error tolerant
Decoy Report top  hits