322 Exopeptidase that catalyzes the hydrolytic cleavage of multi-L-arginyl-poly-L-aspartic acid (cyanophycin; a water- insoluble reserve polymer) into aspartate-arginine dipeptides. MLYRIPVSTVGYWHSPWQIHQFLLPIERFIHRNPMLQLDPISKTTHQHSGHKGLVMAIGGAEDKVRGRQILTTFCQRAGGLDAVIGVIPSASREPDAMGRLYHDIFRDIGVREVDILLVGDRADAEQEEMLARLSRCTGIFMSGGDQLRLSALLDETPLLYQLRHQVWEGKSILGGTSAGAAVLGECMIASGGSNEAPNRSLVDLATGLGILPDVLVDQHFHNRNRLARLISAISAHPDKLGVGIDEDTCAMFEADGTLRVLGRGSVTIVDPRDVSYTNYAHVDVNEPLSIYNLRLHILSDGDCYNLRTHQVQHKCILPPLN cphB CPHB_SYNEL Cyanophycinase