Peptide Mass Finder

Amino Acids: Monoisotopic mass-H2O    Help

  AAcodeMass* AAcodeMass* AAcodeMass*
   Cysteine modification(all C's):  
One Post-translational modification:

Ion Type:
N terminal group:   C terminal group:   Charge State : [M+]

Sequence: (Single letters, eg. CKY):

Results: M/Z=Da. for Ion:


Substitutions: (when you show isotope cluster) Help
Amino Acid: has atoms substituted by with composition of %

Colby College, T. W. Shattuck, 11/06/00