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© IUBMB 2003
Note: The upper part of the diagram shows mammalian metabolism. The three enzymes shown at the bottom, EC 220.127.116.11, EC 18.104.22.168, and EC 22.214.171.124, are not known to occur in mammals.
EC 126.96.36.199 guanidinoacetate N-methyltransferase
EC 188.8.131.52 glycine amidinotransferase
EC 184.108.40.206 creatine kinase
EC 220.127.116.11 N-carbamoylsarcosine amidase
EC 18.104.22.168 N-methylhydantoinase (ATP-hydrolysing)
EC 22.214.171.124 creatinase
EC 126.96.36.199 creatinine deaminase