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© IUBMB 2003
Note: The upper part of the diagram shows mammalian metabolism. The three enzymes shown at the bottom, EC 3.5.4.21, EC 3.5.2.14, and EC 3.5.1.59, are not known to occur in mammals.
enzymes homepage.
arginine biosynthesis.
EC 2.1.1.2 guanidinoacetate N-methyltransferase
EC 2.1.4.1 glycine amidinotransferase
EC 2.7.3.2 creatine kinase
EC 3.5.1.59 N-carbamoylsarcosine amidase
EC 3.5.2.14 N-methylhydantoinase (ATP-hydrolysing)
EC 3.5.3.3 creatinase
EC 3.5.4.21 creatinine deaminase