EC 2.7.3.7     
Accepted name: opheline kinase
Reaction: ATP + guanidinoethyl methyl phosphate = ADP + N′-phosphoguanidinoethyl methylphosphate
Systematic name: ATP:guanidinoethyl-methyl-phosphate phosphotransferase
Comments: Has a little activity on taurocyamine, lombricine and phosphotaurocyamine.
References:
1.  Thoai, N.V., di Jeso, F., Robin, Y. and der Terrossian, E. Sur la nouvelle acide adenosine 5′-triphosphorique:guanidine phosphotransferase, l'opheline kinase. Biochim. Biophys. Acta 113 (1966) 542–550. [PMID: 5916337]
[EC 2.7.3.7 created 1972]