protein, cleavage C-terminal mass change


This value is a floating point number represented by a character string


  1. Positive and negative values are allowed.
  2. If this value is not present, the default value is 17.00305.


This value represents the mass added to the C-terminus of a peptide after undergoing peptide bond cleavage by a chemical or enzymatic reagent, in Daltons. The default value is the mass change associated with hydrolytic cleavage in normal water.

see also: protein, cleavage N-terminal mass change | protein, N-terminal residue modification mass | protein, C-terminal residue modification mass

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