Cloned (Comment) | Organism |
---|---|
overexpression of isozymes alpha, beta, and gamma in HeLa cells, overexpression of isozymes alpha, beta, and gamma in CV-1 cells: isozymes alpha and beta are active, the latter shows the highest activity, isozyme gamma is not active, small interference RNA inhibition of isozyme beta expression also reduces expression of isozyme alpha, but increased expression of isozyme gamma, with a 50% loss in activity, reduction of isozyme alpha expression increases expression of isozymes beta and gamma and leaves the 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate synthesis level unaltered, inhibition of isozyme gamma increases expression of isozymes alpha and beta, overview, expression of isozyme beta increases the internalization of influenza virus hemagglutinin Y543, enzyme expression prevents the cells of disruption of their actine cytoskeleton by drugs, e.g. cytochalasin D or latrunculin, and increases the number of clathrin-coated pits | Mus musculus |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | - |
Mus musculus |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + 1-phosphatidyl-1D-myo-inositol 4-phosphate | Mus musculus | 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate, especially produced by isozyme beta, is required for constitutive endocytosis of transferrin receptors via clathrin-coated pits, and probably also for the regulation thereof | ADP + 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Mus musculus | - |
3 isozymes alpha, beta, and gamma | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + 1-phosphatidyl-1D-myo-inositol 4-phosphate | - |
Mus musculus | ADP + 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate | - |
? | |
ATP + 1-phosphatidyl-1D-myo-inositol 4-phosphate | 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate, especially produced by isozyme beta, is required for constitutive endocytosis of transferrin receptors via clathrin-coated pits, and probably also for the regulation thereof | Mus musculus | ADP + 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
phosphatidylinositol phosphate 5-kinase Ibeta | - |
Mus musculus |
PIP5KI | - |
Mus musculus |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
ATP | - |
Mus musculus |