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EC 2.7.7.45 Details
EC number
2.7.7.45
Accepted name
guanosine-triphosphate guanylyltransferase
Reaction
2 GTP = diphosphate + P1,P4-bis(5′-guanosyl) tetraphosphate
Other name(s)
diguanosine tetraphosphate synthetase,
GTP-GTP guanylyltransferase,
Gp4G synthetase,
guanosine triphosphate-guanose triphosphate guanylyltransferase
Systematic name
GTP:GTP guanylyltransferase
CAS registry number
54576-89-5
Comment
Also acts, more slowly, on GDP to form P1,P3-bis(5′-guanosyl) triphosphate.
History
created 1976
EC Tree
1.12.7.1 created 1972, deleted 1978
2.7.7.16 created 1961, deleted 1972, [transferred to EC 3.1.4.22, deleted 1980]
2.7.7.17 created 1965, deleted 1972, [transferred to EC 3.1.4.23, deleted 1980]
2.7.7.20 created 1965, deleted 1972
2.7.7.26 created 1961 as EC 3.1.4.8, transferred 1965 to EC 2.7.7.26, deleted 1972
2.7.7.29 created 1972, deleted 2004