KEGG Orthology (KO) [BR:ko00001] 09100 Metabolism 09102 Energy metabolism 00680 Methane metabolism [PATH:ko00680] K00440 frhA; coenzyme F420 hydrogenase subunit alpha [EC:1.12.98.1] Enzymes [BR:ko01000] 1. Oxidoreductases 1.12 Acting on hydrogen as donor 1.12.98 With other, known, physiological acceptors 1.12.98.1 coenzyme F420 hydrogenase K00440 frhA; coenzyme F420 hydrogenase subunit alpha [EC:1.12.98.1]