Ech hydrogenase (Ech) from the methanogenic archaeon Methanosarcina barkeri catalyzes
the reversible reduction of ferredoxin by H2 and is a member of a distinct group of …

The methanogenic archaeon Methanosarcina barkeri encodes three distinct types of
hydrogenase, whose functions vary depending on the growth substrate. These include the …

Methanosarcina barkeri has recently been shown to produce a multisubunit membrane‐
bound [NiFe] hydrogenase designated Ech (Escherichia coli hydrogenase 3) hydrogenase …

Hydrogenotrophic methanogenic Archaea require reduced ferredoxin as an anaplerotic
source of electrons for methanogenesis. H2 oxidation by the hydrogenase Eha provides …

Reduced ferredoxin is an intermediate in the methylotrophic and aceticlastic pathway of
methanogenesis and donates electrons to membrane-integral proteins, which transfer …

Despite decades of study, electron flow and energy conservation in methanogenic Archaea
are still not thoroughly understood. For methanogens without cytochromes, flavin-based …

Methanosarcina mazei belongs to the group of aceticlastic methanogens and converts
acetate into the potent greenhouse gases CO2 and CH4. The aceticlastic respiratory chain …

Two gene groups, designated energy converting hydrogenase A (eha) and energy
converting hydrogenase B (ehb), each encoding a putative multisubunit membrane‐bound …

Methanogenic archaea are known to contain two types of [NiFe] hydrogenases designated
F420‐reducing hydrogenase and F420‐non‐reducing hydrogenase. We report here that …

The biological production of methane is vital to the global carbon cycle and accounts for ca.
74% of total methane emissions. The organisms that facilitate this process, methanogenic …