1.14.14.12	3-hydroxy-9,10-seconandrost-1,3,5(10)-triene-9,17-dione 4-hydroxylase, HsaAB	the two-component enzyme HsaAB consists of an oxygenase subunit HsaA and a reductase subunit hsaB that utilizes NADH to reduce the flavin, which is then transferred to the oxygenase subunit	-, 715515