zymosterone + CO2 + NADH => 4alpha-carboxyzymosterol + NAD(+)
zymosterone + co2 + nadh => 4alpha-carboxyzymosterol + nad(+)
zymosterone + CO2 + NADH => 4alpha-carboxyzymosterol + NAD(+)
zymosterone + co2 + nadh => 4alpha-carboxyzymosterol + nad(+)