Reaction catalyzed by beta-lactamase (3.5.2.6)

		+		H2O	=
	7beta-aminocephalosporanic acid	+		H2O	=		(2R)-5-[(acetyloxy)methyl]-2-[(R)-amino(carboxy)methyl]-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid