Peptide mass calculator

About Peptide Calculator 1.0.1

This Peptideweb.com application is tool to calculate the molecular formulae, accurate monoisotopic and average masses of your peptide. You can work with a sequence in one- or three-letter amino acid code, choose few popular modifications on N- and C-terminals or add disulfide bridges.

The masses are calculated using the following atomic weights:

Element Monoisotopic mass Average mass

H 1.0078250 1.0079400

C 12.0000000 12.0110000

O 15.9949146 15.9994000

S 31.9720718 32.0660000

N 14.0030740 14.0067400

Please visit our webpage www.peptideweb.com for newest version of our application and new products dedicated for every peptide laboratory.

Good luck!

Wojciech Kamysz

with co-workers: W. Strugala, B. Kraska About Peptide Calculator 1.0.1

This application is Peptideweb.com this tool calculate the molecular formulas, accurate monoisotopic and average masses of your peptide. You can work with a sequence in one- or three-letter amino acid code, choose a few popular modifications on N- and C-terminals or add disulfide bridges.

The masses are calculated using atomic weights The Following:

Monoisotopic element mass Average mass

     H 1.0078250 1.0079400

     C 12.0000000 12.0110000

     About 15.9949146 15.9994000

     S 31.9720718 32.0660000

     N 14.0030740 14.0067400

Please visit our webpage www.peptideweb.com for newest version of our application and new products dedicated for every peptide laboratory.

Good luck!

Wojciech Kamysz

with co-workers W. Strugała, B. Kraska