label: Co(I)-[quaternary-amine-specific corrinoid protein] + (R)-carnitine + H(+) <=> (3R)-4-(dimethylamino)-3-hydroxybutanoate + methyl-Co(III)-[quaternary-amine-specific corrinoid protein]
label_lc: co(i)-[quaternary-amine-specific corrinoid protein] + (r)-carnitine + h(+) <=> (3r)-4-(dimethylamino)-3-hydroxybutanoate + methyl-co(iii)-[quaternary-amine-specific corrinoid protein]