4-(2-aminoethyl)benzenesulfonyl fluoride derivatized residue alpha-amino 4-(2-aminoethyl)benzenesulfonylated residue 183.035400390625 183.035400390625 183.2299957275390625 183.2299957275390625 A protein modification that effectively replaces a residue alpha-amino- or alpha-imino-hydrogen with an 4-(2-aminoethyl)benzenesulfonyl group. Aminoethylbenzenesulfonylation See the comment for MOD:00596 [JSG]. C 8 H 9 N 1 O 2 S 1 PSI-MOD MOD:01697 N-term C 8 H 9 N 1 O 2 S 1 AEBS X artifact