ID 2.7.1.158 DE inositol-pentakisphosphate 2-kinase. AN inositol 1,3,4,5,6-pentakisphosphate 2-kinase. AN inositol polyphosphate kinase. AN Ins(1,3,4,5,6)P5 2-kinase. AN IP5 2-kinase. CA 1D-myo-inositol 1,3,4,5,6-pentakisphosphate + ATP = 1D-myo-inositol CA hexakisphosphate + ADP + H(+). CC -!- The enzyme can also use Ins(1,4,5,6)P4 and Ins(1,4,5)P3 as substrate. CC -!- Inositol hexakisphosphate (phytate) accumulates in storage protein CC bodies during seed development and, when hydrolyzed, releases stored CC nutrients to the developing seedling before the plant is capable of CC absorbing nutrients from its environment. DR Q59KN8, IPK1_CANAL ; Q6FRN1, IPK1_CANGA ; Q6BHL8, IPK1_DEBHA ; DR Q75EW5, IPK1_EREGS ; Q6CNG8, IPK1_KLULA ; B8AVX5, IPK1_ORYSI ; DR Q7XQZ6, IPK1_ORYSJ ; Q9USK0, IPK1_SCHPO ; Q6C6Q7, IPK1_YARLI ; DR Q06667, IPK1_YEAST ; Q93YN9, IPPK_ARATH ; P0CO35, IPPK_CRYNB ; DR P0CO34, IPPK_CRYNJ ; Q4JL91, IPPK_DANRE ; Q9W2Q7, IPPK_DROME ; DR Q9H8X2, IPPK_HUMAN ; Q6P1C1, IPPK_MOUSE ; Q5PXE9, IPPK_RAT ; DR Q4P4C1, IPPK_USTMA ; //