a 3-oxo-Delta(1)-steroid + A + H2O <=> a steroid 1,3-dione + AH2
a 3-oxo-delta(1)-steroid + a + h2o <=> a steroid 1,3-dione + ah2
a 3-oxo-Delta(1)-steroid + A + H2O <=> a steroid 1,3-dione + AH2
a 3-oxo-delta(1)-steroid + a + h2o <=> a steroid 1,3-dione + ah2