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EC 3.1.3.57 Details
EC number
3.1.3.57
Accepted name
inositol-1,4-bisphosphate 1-phosphatase
Reaction
1D-myo-inositol 1,4-bisphosphate + H2O = 1D-myo-inositol 4-phosphate + phosphate
Other name(s)
inositol-polyphosphate 1-phosphatase
Systematic name
1D-myo-inositol-1,4-bisphosphate 1-phosphohydrolase
CAS registry number
111070-17-8, 111694-13-4
Comment
The enzyme acts on inositol 1,4-bisphosphate and inositol 1,3,4-trisphosphate (forming inositol 3,4-bisphosphate) with similar Vmax values for both substrates, but with a five-times higher affinity for the bisphosphate. Does not act on inositol 1-phosphate, inositol 1,4,5-trisphosphate or inositol 1,3,4,5-tetrakisphosphate.
History
created 1989, modified 2002
EC Tree
3.1.3.30 created 1972, deleted 1992
3.1.3.61 created 1992, deleted 2002
3.1.3.65 created 1992, deleted 2002