label: 4alpha-methyl-5alpha-cholest-7-en-3beta-ol + 6 Fe(II)-[cytochrome b5] + 3 O2 + 5 H(+) => 4alpha-carboxy-5alpha-cholest-7-en-3beta-ol + 6 Fe(III)-[cytochrome b5] + 4 H2O
label_lc: 4alpha-methyl-5alpha-cholest-7-en-3beta-ol + 6 fe(ii)-[cytochrome b5] + 3 o2 + 5 h(+) => 4alpha-carboxy-5alpha-cholest-7-en-3beta-ol + 6 fe(iii)-[cytochrome b5] + 4 h2o