label: coenzyme M-coenzyme B heterodisulfide + 2 H2 + 2 oxidized [2Fe-2S]-[ferredoxin] => coenzyme B + coenzyme M + 2 reduced [2Fe-2S]-[ferredoxin] + 2 H(+)
label_lc: coenzyme m-coenzyme b heterodisulfide + 2 h2 + 2 oxidized [2fe-2s]-[ferredoxin] => coenzyme b + coenzyme m + 2 reduced [2fe-2s]-[ferredoxin] + 2 h(+)