Patrick Salveson 应用

Peptide Ion Calculator is the perfect toolforpeptide and protein chemistsPeptide Ion Calculator makes analyzing mass spec data ofpeptidesa breeze. Build you peptide's sequence, then enterexperimentallyobserved ions. Peptide Ion Calculator will returnany potential ionwho's theoretical exact mass is within 0.3 amu ofyour observedmass.Amino Acids:All 20 natural amino acidsSeveral unnatural amino acidsSeveral N-methylated amino acidsOne N15 labeled amino acidNow introducing custom masses! Cant find an amino acid orsidechain modification? Add it to the app yourself!Peptide Ion Calculator makes it easy to troubleshoot afailedsynthesis. Peptide Ion Calculator will search your observedmassagainst a list of singe and double deletions/additions, as wellasa number of side reaction that can occur during solid phasepeptidesynthesis.Side Reactions:Guanidinylation of aminesIncomplete deprotection of Fmoc, Boc, Trityl, tBu, Acm.Currently supports positive ionization mode, up to triplychargedspecies, either as M or 2M species:plus H, Na, or K.