Inositol-pentakisphosphate 2-kinase

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Inositol-pentakisphosphate 2-kinase
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EC no. 2.7.1.158
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In enzymology, an inositol-pentakisphosphate 2-kinase (EC 2.7.1.158) is an enzyme that catalyzes the chemical reaction

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

Thus, the two substrates of this enzyme are ATP and 1D-myo-inositol 1,3,4,5,6-pentakisphosphate, whereas its two products are ADP and 1D-myo-inositol hexakisphosphate.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is ATP:1D-myo-inositol 1,3,4,5,6-pentakisphosphate 2-phosphotransferase. Other names in common use include IP5 2-kinase, Gsl1p, Ipk1p, inositol polyphosphate kinase, inositol 1,3,4,5,6-pentakisphosphate 2-kinase, and Ins(1,3,4,5,6)P5 2-kinase.

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<span class="mw-page-title-main">1-phosphatidylinositol 4-kinase</span> Class of enzymes

In enzymology, a 1-phosphatidylinositol 4-kinase is an enzyme that catalyzes the chemical reaction

In enzymology, 1-phosphatidylinositol-4-phosphate 5-kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a 1-phosphatidylinositol-5-phosphate 4-kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a diphosphoinositol-pentakisphosphate kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a Goodpasture-antigen-binding protein kinase is an enzyme that catalyzes the chemical reaction

In enzymology, an inositol 3-kinase is an enzyme that catalyzes the chemical reaction

In enzymology, an inositol-tetrakisphosphate 1-kinase is an enzyme that catalyzes the chemical reaction

In enzymology, an inositol-tetrakisphosphate 5-kinase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Inositol-trisphosphate 3-kinase</span> Class of enzymes

Inositol (1,4,5) trisphosphate 3-kinase (EC 2.7.1.127), abbreviated here as ITP3K, is an enzyme that facilitates a phospho-group transfer from adenosine triphosphate to 1D-myo-inositol 1,4,5-trisphosphate. This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is ATP:1D-myo-inositol-1,4,5-trisphosphate 3-phosphotransferase. ITP3K catalyzes the transfer of the gamma-phosphate from ATP to the 3-position of inositol 1,4,5-trisphosphate to form inositol 1,3,4,5-tetrakisphosphate. ITP3K is highly specific for the 1,4,5-isomer of IP3, and it exclusively phosphorylates the 3-OH position, producing Ins(1,3,4,5)P4, also known as inositol tetrakisphosphate or IP4.

In enzymology, a N-acetylgalactosamine kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a phosphatidylinositol-4-phosphate 3-kinase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">IHPK2</span> Protein-coding gene in the species Homo sapiens

Inositol hexakisphosphate kinase 2 is an enzyme that in humans is encoded by the IP6K2 gene.

<span class="mw-page-title-main">IHPK1</span> Protein-coding gene in the species Homo sapiens

Inositol hexakisphosphate kinase 1 is an enzyme that in humans is encoded by the IP6K1 gene.

Inositol-polyphosphate multikinase is an enzyme with systematic name ATP:1D-myo-inositol-1,4,5-trisphosphate 6-phosphotransferase. This enzyme catalyses the following chemical reaction

inositol-1,3,4-trisphosphate 5/6-kinase is an enzyme with systematic name ATP:1D-myo-inositol 1,3,4-trisphosphate 5-phosphotransferase. This enzyme catalyses the following chemical reaction

Inositol-hexakisphosphate kinase is an enzyme with systematic name ATP:1D-myo-inositol-hexakisphosphate 5-phosphotransferase. This enzyme catalyses the following chemical reaction

<span class="mw-page-title-main">Inositol polyphosphate kinase</span> Enzyme family

Inositol polyphosphate kinase (IPK) is a family of enzymes that have a similar 3-dimensional structure. All members of the family catalyze the transfer of phosphate groups from ATP to various inositol phosphates. Members of the family include inositol-polyphosphate multikinases, inositol-hexakisphosphate kinases, inositol-trisphosphate 3-kinases, and inositol-pentakisphosphate 2-kinase, which is more distantly related to the others

References


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