7alpha,12alpha-dihydroxy-3-oxochol-24-oyl-CoA + NAD(+) <=> 7alpha,12alpha-dihydroxy-3-oxochol-4-en-24-oyl-CoA + NADH + H(+)
7alpha,12alpha-dihydroxy-3-oxochol-24-oyl-coa + nad(+) <=> 7alpha,12alpha-dihydroxy-3-oxochol-4-en-24-oyl-coa + nadh + h(+)
7alpha,12alpha-dihydroxy-3-oxochol-24-oyl-CoA + NAD(+) <=> 7alpha,12alpha-dihydroxy-3-oxochol-4-en-24-oyl-CoA + NADH + H(+)
7alpha,12alpha-dihydroxy-3-oxochol-24-oyl-coa + nad(+) <=> 7alpha,12alpha-dihydroxy-3-oxochol-4-en-24-oyl-coa + nadh + h(+)