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2.7.1.134: inositol-tetrakisphosphate 1-kinase

This is an abbreviated version!
For detailed information about inositol-tetrakisphosphate 1-kinase, go to the full flat file.

Word Map on EC 2.7.1.134

Reaction

ATP
+
1D-myo-inositol 3,4,5,6-tetrakisphosphate
=
ADP
+
1D-myo-inositol 1,3,4,5,6-pentakisphosphate

Synonyms

1-myo-inositol-trisphosphate 6-kinase, 1D-myo-inositol-tetrakisphosphate 1-kinase, 1D-myo-inositol-trisphosphate 5-kinase, At5g42810, ATP:1D-myo-inositol-1,3,4-trisphosphate 5-phosphoransferase, ATP:1D-myo-inositol-1,3,4-trisphosphate 6-phosphoransferase, EC 2.7.1.133, EC 2.7.1.139, HvIpk, inositol 1,3,4-trisphosphate 5/6 kinase, inositol 1,3,4-trisphosphate 5/6-kinase, inositol 1,3,4-trisphosphate 5/6-kinase 1, inositol 1,3,4-trisphosphate 5/6-kinase6, inositol 1,4,5,6-tetrakisphosphate 3-kinase, inositol tris/tetrakisphosphate kinase 1, inositol-trisphosphate 5-kinase, inositol-trisphosphate 6-kinase, Ipk kinase, ITPK, ITPK1, ITPK2, ITPK3, kinase, inositol 1,4,5,6-tetrakisphosphate 3- (phosphorylating), More, Os09g0518700, OsIpk, OsITPK6

ECTree

     2 Transferases
         2.7 Transferring phosphorus-containing groups
             2.7.1 Phosphotransferases with an alcohol group as acceptor
                2.7.1.134 inositol-tetrakisphosphate 1-kinase

Systematic Name

Systematic Name on EC 2.7.1.134 - inositol-tetrakisphosphate 1-kinase

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SYSTEMATIC NAME
IUBMB Comments
ATP:1D-myo-inositol-3,4,5,6-tetrakisphosphate 1-phosphotransferase
This enzyme also phosphorylates Ins(1,3,4)P3 on O-5 and O-6. The phosphotransfer from ATP to either inositol 1,3,4-trisphosphate or inositol 3,4,5,6-tetrakisphosphate appears to be freely reversible to the extent that the enzyme can act like an inositol polyphosphate phosphatase in the presence of ADP. It can also catalyse an isomerization between Ins(1,3,4,5)P4 and Ins(1,3,4,6)P4 in the presence of ADP. The enzymes from animals and plants also have the activity of EC 2.7.1.159, inositol-1,3,4-trisphosphate 5/6-kinase.