label: 3-dehydro-4alpha-methylzymosterol + CO2 + NADPH => 4beta-carboxy-4alpha-methyl-5alpha-cholesta-8,24-dien-3beta-ol + NADP(+)
label_lc: 3-dehydro-4alpha-methylzymosterol + co2 + nadph => 4beta-carboxy-4alpha-methyl-5alpha-cholesta-8,24-dien-3beta-ol + nadp(+)