label: 4alpha-methyl-5alpha-cholest-8-en-3beta-ol + 2 Fe(II)-[cytochrome b5] + O2 + 2 H(+) <=> 4alpha-hydroxymethyl-5alpha-cholest-8-en-3beta-ol + 2 Fe(III)-[cytochrome b5] + H2O
label_lc: 4alpha-methyl-5alpha-cholest-8-en-3beta-ol + 2 fe(ii)-[cytochrome b5] + o2 + 2 h(+) <=> 4alpha-hydroxymethyl-5alpha-cholest-8-en-3beta-ol + 2 fe(iii)-[cytochrome b5] + h2o