Phosphocysteine intermediate; for EIIB activity
2-(S-cysteinyl)pyruvic acid O-phosphothioketal
Phosphatidylserine decarboxylase alpha chain
Phosphatidylserine decarboxylase beta chain
Schiff-base intermediate with substrate; via pyruvic acid
Isoglutamyl lysine isopeptide (Glu-Lys) (interchain with K-? in acceptor proteins)