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