MS-Isotope Instructions

A tool for calculating and visualizing isotope patterns of peptides and organic molecules from the .
MS-Fit MS-Seq MS-Edman
MS-Digest MS-Product MS-Comp DB-Stat
Peptide Sequence
Enter Sequence in Capital letters except:
| m - Met-ox | q - Pyroglutamic acid | h - Homoserine lactone | s,t,y - Phosphorylated S,T,Y | u - user specified amino acid |
N-terminus Sequence C-terminus

Cysteines Modified by:

User Specified AA elemental composition (u):
C: H: N: O: S: P: ( default is Glycine )

MUST CHOOSE ONLY ONE
Elemental Composition
C: H: N: O: S: P:
Show Detailed Report: