The total mass of the modified amino-acid / terminus is specified to
ASAPRatio. The unmodified n-terminus of any peptide is 1.007825 (or
the mass of H), since your termini are modified the mass of the
modification will be added to 1.0078.
Also, please update to the latest version of the TPP (4.4
Hi all,
I have been trying to quantify our dimethyl labeled samples for the
last week using TPP. I got it to work when I ran heavy and light label
SEQUEST searches separate and in ASAP ratio I chose the option of
"static modification quantification" and chose K and n-terminus as the
"labeled residu
