870 hypothetical proteinThalassiosira pseudonana
GO:0005524 GO:0000285 -
Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
1-phosphatidylinositol-3-phosphate 5-kinase activity
Catalysis of the reaction: a 1-phosphatidyl-1D-myo-inositol 3-phosphate + ATP = a 1-phosphatidyl-1D-myo-inositol 3,5-bisphosphate + ADP + 2 H(+).