GO:0016309

1-phosphatidylinositol-5-phosphate 4-kinase activity

Details: 
Catalysis of the reaction: ATP + 1-phosphatidyl-1D-myo-inositol 5-phosphate = ADP + 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate. [EC:2.7.1.149]
Evidence Code: