4alpha-methyl-5alpha-cholest-7-en-3-one + CO2 + NADPH => 4alpha-carboxy-4beta-methyl-5alpha-cholest-7-ene-3beta-ol + NADP(+)
4alpha-methyl-5alpha-cholest-7-en-3-one + co2 + nadph => 4alpha-carboxy-4beta-methyl-5alpha-cholest-7-ene-3beta-ol + nadp(+)
4alpha-methyl-5alpha-cholest-7-en-3-one + CO2 + NADPH => 4alpha-carboxy-4beta-methyl-5alpha-cholest-7-ene-3beta-ol + NADP(+)
4alpha-methyl-5alpha-cholest-7-en-3-one + co2 + nadph => 4alpha-carboxy-4beta-methyl-5alpha-cholest-7-ene-3beta-ol + nadp(+)