Home | Search | Tools | Downloads | Documents | Contacts | Log In | Help

MassMatrix Database Search Engine

NEWS: The web interface has been upgraded. The new interface allows you to save and re-use your search parameters as profiles. It is also more interactive. iTRAQ purity correction has also been activated in the new interface.

Melecular Weight Calculator Chemical Formula/Sequence: Examples: Methane: CH4 = CHHHH = CH5H-1 Glucosse: (CH2O)6 = C6H12O6 Glycine residue: {G} = {Gly} = C2H3NO Glycine amino acid: H{G}OH = H{Gly}OH = C2H5NO2 A peptide of "GGAEDGGAED": H{GGAEDGGAED}OH = H{(GGAED)2}OH Lysine labeled with six 2H: C6H6D6N2O Arginine labeled with six 13C and four 15N: C(13)6H12N(15)4O For more information about chemical formula syntax, click here.

_________________________
Design&Author: Hua Xu