zymosterone + CO2 + NADPH => 4alpha-carboxyzymosterol + NADP(+)
zymosterone + co2 + nadph => 4alpha-carboxyzymosterol + nadp(+)
zymosterone + CO2 + NADPH => 4alpha-carboxyzymosterol + NADP(+)
zymosterone + co2 + nadph => 4alpha-carboxyzymosterol + nadp(+)