label: 3-dehydro-4alpha-methylzymosterol + CO2 + NADH => 4beta-carboxy-4alpha-methyl-5alpha-cholesta-8,24-dien-3beta-ol + NAD(+)
label_lc: 3-dehydro-4alpha-methylzymosterol + co2 + nadh => 4beta-carboxy-4alpha-methyl-5alpha-cholesta-8,24-dien-3beta-ol + nad(+)