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Methanogens hydrogenases

A characteristic of virtually all methanogen hydrogenases is their very large native size (although they are soluble enzymes), typically 600-1000 kDa. This is often explained as a result of hydrophobic interactions with other proteins, and as an indication that it is a loosely-bound membrane protein. H2ase is often associated with membranes early during its purification [271,280]. These properties have been investigated in several ways by electron microscopy. [Pg.69]

The third type of hydrogenases from some methanogenic archea, also referred to as iron-sulfur-cluster-free hydrogenase, oxHmd, has attracted interest in bioinorganic... [Pg.445]

Proposed mechanism for the reversible reaction of N, N -methenyltetrahydromethanopterin (methenyl-H4MPT ) with H2 to N, N -methylenetetrahydromethanopterin (methylene-H4MPT) and a proton catalysed by the metal-free hydrogenase from methanogenic archaea... [Pg.10]

The metal-free hydrogenase from methanogenic archaea... [Pg.185]

Buurman, G., Shima, S., Thauei R. K. (2000) The metal-free hydrogenase from methanogenic archaea evidence for a bound cofactor. FEBS Lett. 485, 200M... [Pg.259]

Geierstanger, B. H., Prasch, T., Griesinger, C., Hartmann, G. C., Buurman, G. and Thauer, R. K. (1998) Catalytic mechanism of the metal-free hydrogenase from Methanogenic Archaea Reversed stereospecificity of the catalytic and non-catalytic reaction. Angew. Chem. Int., 37, 3300-3. [Pg.263]

Ktinkel, A., Vorholt, J. A., Thauer, R. K. and Hedderich, R. (1998) An Escherichia coli hydro-genase-3-type hydrogenase in methanogenic archaea. Eur. J. Biochem., 252, 467-76. [Pg.268]

Berkessel A, Thauer RK (1995) On the mechanism of catalysis by a metal-free hydrogenase from methanogenic archaea enzymatic transformation of H2 without a metal and its analogy to the chemistry of alkanes in superacidic solution. Angew Chem Int Ed 34 2247... [Pg.106]

Nickel is found in at least four enzymes urease, certain hydrogenases, methyl-CoM reductase (in its cofactor F430) of methanogenic bacteria, and carbon monoxide dehydrogenase of acetogenic and methanogenic bacteria 434... [Pg.877]

See other pages where Methanogens hydrogenases is mentioned: [Pg.140]    [Pg.140]    [Pg.164]    [Pg.82]    [Pg.84]    [Pg.90]    [Pg.31]    [Pg.31]    [Pg.31]    [Pg.32]    [Pg.36]    [Pg.38]    [Pg.38]    [Pg.39]    [Pg.39]    [Pg.40]    [Pg.45]    [Pg.45]    [Pg.46]    [Pg.48]    [Pg.49]    [Pg.50]    [Pg.50]    [Pg.51]    [Pg.54]    [Pg.56]    [Pg.77]    [Pg.100]    [Pg.162]    [Pg.177]    [Pg.185]    [Pg.187]    [Pg.227]    [Pg.265]    [Pg.279]    [Pg.272]    [Pg.72]    [Pg.106]    [Pg.123]    [Pg.276]   
See also in sourсe #XX -- [ Pg.316 ]



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