Comet parameter: digest_mass_range

• Defines the mass range of peptides to search (based on MH+ or the singly protonated mass).
• This parameter has two decimal values.
• The first value is the lower mass cutoff and the second value is the high mass cutoff.
• Only spectra with experimental MH+ masses within (or equal to) the defined mass ranges are searched.
• Valid values are two decimal numbers where the first number must be less or equal to the second number.
• The default value is “600.0 8000.0” if this parameter is missing.

Example:

digest_mass_range = 600.0 8000.0
digest_mass_range = 400.0 5000.0