3-oxocholestane + A + H2O <=> 25-hydroxy 3-oxocholestane + AH2
3-oxocholestane + a + h2o <=> 25-hydroxy 3-oxocholestane + ah2
3-oxocholestane + A + H2O <=> 25-hydroxy 3-oxocholestane + AH2
3-oxocholestane + a + h2o <=> 25-hydroxy 3-oxocholestane + ah2