TY - JOUR A1 - Haebel, Sophie A1 - Albrecht, Tanja A1 - Sparbier, Katrin A1 - Walden, Peter A1 - Körner, Roman A1 - Steup, Martin T1 - Electrophoresis-related protein modification: alkylation of carboxy residues revealed by mass spectrometry Y1 - 1998 ER -