1.5.98.1 5,10-methenyltetrahydromethanopterin + reduced coenzyme F420 hydrogenotrophic methanogenesis pathway in class I methanogens, enzyme of the methanogenic energy metabolism that catalyzes the hydride transfer between substrate and product using coenzyme F420 as hydride carrier 1.5.98.1 5,10-methylenetetrahydromethanopterin + oxidized coenzyme F420 - 1.5.98.1 5,10-methylenetetrahydromethanopterin + oxidized coenzyme F420 the enzyme is proposed to function in methanol oxidation step to CO2 1.5.98.1 5,10-methylenetetrahydromethanopterin + oxidized coenzyme F420 fourth step in the CO2 reduction to methane 1.5.98.1 5,10-methylenetetrahydromethanopterin + oxidized coenzyme F420 the enzyme catalyzes the fourth reaction step of CO2-reduction to methane in methanogenic archaea 1.5.98.1 additional information enzyme is involved in CO2 reduction to CH4