ID 1.14.13.86 DE 2-hydroxyisoflavanone synthase. AN 2-HIS. CA Apigenin + 2 NADPH + O(2) = 2-hydroxy-2,3-dihydrogenistein + 2 NADP(+) + CA H(2)O. CF Heme-thiolate. CC -!- EC 4.2.1.105 acts on 2-hydroxy-2,3-dihydrogenistein with loss of CC water and formation of genistein; this may occur spontaneously. PR PROSITE; PDOC00081; //