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IUBMB CommentsHas a little activity on taurocyamine, lombricine and phosphotaurocyamine.
The expected taxonomic range for this enzyme is: Ophelia neglecta
Synonyms
opheline kinase,
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ATP:guanidinoethylmethylphosphate phosphotransferase
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kinase (phosphorylating), opheline
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kinase, opheline (phosphorylating)
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ATP + guanidinoethyl methyl phosphate = ADP + N'-phosphoguanidinoethyl methylphosphate
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phospho group transfer
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ATP:guanidinoethyl-methyl-phosphate phosphotransferase
Has a little activity on taurocyamine, lombricine and phosphotaurocyamine.
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ATP + 2-guanidinoethyl phosphate
ADP + N-phospho-2-guanidinoethyl phosphate
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ATP + lombricine
ADP + phospholombricine
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ATP + opheline
ADP + phosphoopheline
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i.e. 2-guanidinoethylmethyl phosphate
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r
ATP + taurocyamine
ADP + phosphotaurocyamine
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r
additional information
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no phosphorylation of arginine, guanidinoacetate, no reverse reaction with their corresponding phosphagens
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13
2-guanidinoethyl phosphate
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30°C
1.1
phosphoopheline
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30°C
1.8
phosphotaurocyamine
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30°C
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6.8
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reaction with phosphoopheline
8.5
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phosphorylation of opheline
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6 - 7.5
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oH 6.0: about 80% of maximal activity, pH 7.5: about 65% of maximal activity, reaction with phosphoopheline
7.5 - 9
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pH 7.5: about 65% of maximal activity, pH 9.0: about 50% of maximal activity, phosphorylation of opheline
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brenda
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brenda
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van Thoai, N.; di Jeso, F.; Robin, Y.; der Terrossian, E.
Sur la nouvelle acide adenosine 5'-triphosphorique:guanidine phosphotransferase, lopheline kinase
Biochim. Biophys. Acta
113
542-550
1966
Ophelia neglecta
brenda
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