Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | required | Mus musculus |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + 1-phosphatidyl-1D-myo-inositol 3-phosphate | Mus musculus | - |
ADP + 1-phosphatidyl-1D-myo-inositol 3,5-bisphosphate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Mus musculus | Q9Z1T6 | gene PIKfyve | - |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
podocyte | - |
Mus musculus | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + 1-phosphatidyl-1D-myo-inositol 3-phosphate | - |
Mus musculus | ADP + 1-phosphatidyl-1D-myo-inositol 3,5-bisphosphate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
PIKfyve | - |
Mus musculus |
PtdIns 3-phosphate 5-kinase | - |
Mus musculus |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
ATP | - |
Mus musculus |
General Information | Comment | Organism |
---|---|---|
malfunction | the vacuolation phenotype in cultured Vps34 (EC 2.7.1.137)-deficient podocytes is caused by the absence of a substrate for the Vps34 downstream effector PtdIns 3-phosphate 5-kinase, which phosphorylates Vps34-generated 1-phosphatidyl-1D-myo-inositol 3-phosphate to produce + 1-phosphatidyl-1D-myo-inositol 3,5-bisphosphate. PtdIns 3-phosphate 5-kinase perturbation and 1-phosphatidyl-1D-myo-inositol 3,5-bisphosphate reduction result in massive membrane vacuolation along the endosomal system. Genetic deletion of the enzyme in endocytically active proximal tubular cells results in the development of large cytoplasmic vacuoles caused by arrested endocytic traffic progression at a late-endosome stage, while deletion of the enzyme in glomerular podocytes does not significantly alter the endosomal morphology, even in age 18-month-old mice | Mus musculus |