S-(L-lysyl)-L-methionine sulfilimine -2.0156500339508056641 -2.0199999809265136719 257.11981201171875 257.350006103515625 (E)-N6-([(3S)-3-amino-3-carboxypropyl](methyl)-lambda(4)-sulfanylidene)-L-lysine Cross-link 2. (2S)-2-amino-6-([(E)-[(3S)-3-amino-3-carboxypropyl](methyl)-lambda(4)-sulfanylidene]amino)hexanoic acid natural A protein modification that effectively converts an L-lysine residue, and an L-methionine residue to S-(L-lysyl)-L-methionine sulfilimine. none C 11 H 19 N 3 O 2 S 1 S-lysyl-methionine S-(L-lysyl)-L-methionine sulfilimine PSI-MOD MOD:01602 H -2 K, M crosslinked L-lysine residue crosslinked L-methionine residue