Archaea methanogenic

Chistoserdova L, JA Vorholt, RK Thauer, ME Lidstrom (1998) Cl transfer enzymes and coenzymes linking methylotrophic bacteria and methanogenic archaea. Science 281 99-102. 

Lu YH, Conrad R. In situ stable isotope probing of methanogenic archaea in the rice rhizosphere. Science. 2005 309 1088-1090. 

Pancost RD, Damste JSS, de Lint S, van der Maarel MJEC, Gottschal JC, The Medinaut Shipboard Scientific Party (2000) Biomarker evidence for widespread anaerobic methane oxidation in mediterranean sediments by a consortium of methanogenic archaea and bacteria. Appl Environ Microbiol... 

Gottschalk, G. and Thauer, R. K. (2001). The Na+-translocating methyltransfer-ase complex from methanogenic archaea, Biochim. Biophys. Acta - Bioenerg.,... 

The transformation of carbon dioxide and hydrogen into methane by methanogenic archaea of the Methanosarcina species is represented by Eq. 1 ... 

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... 

The metal-free hydrogenase from methanogenic archaea... 

Berkessel, A. and Thauer, R. K. (1995) On the mechanism of catalysis by a metal-free hydro-genase from methanogenic archaea Enzymic transformation of H2 without a metal and its analogy to the chemistry of alkanes in superacidic solution. Angew. Cbem., Int. Ed. Engl., 34, 2247-50. 

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

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. 

Moreira D, Lopez-Garcla P. 1998. Symbiosis between methanogenic archaea and deita-proteobacteria as the origin of eukaryotes The syntrophic hypothesis. J Mol Evoi 47 517-30. 

Bartoschek S, Vorholt JA, Thauer RK, et al. 2000. N-carboxymethanofuran (carbamate) formation from methanofuran and CO2 in methanogenic archaea. Thermodynamics and kinetics of the spontaneous reaction. Eur J Biochem 267 3130-8. 

Gottschalk G, Thauer RK. 2001. The Na translocating methyltransferase complex from methanogenic. Archaea Biochim Biophys Acta 1505 28-36. 

Hippier B, Thauer RK. 1999. The energy conserving methyltetrahydrometha-nopterin coenzyme M methyltransferase complex from methanogenic archaea function of the subunit MtrH. FEBS Lett 449 165-8. 

Shima S, Warkentin E, Grabarse W, et al. 2000. Stmctnre of coenzyme F420 dependent methylenetetrahydromethanopterin rednctase from two methanogenic Archaea. J Mol Biol 300 935-50. 

Kotelnikova S, Pedersen K. 1997. Evidence for methanogenic Archaea and homoacetogenic Bacteria in deep granitic rock aquifers. EEMS Microbiol Rev 20 339 9. 

Anaerobic methane oxidation (methanotrophy) CH4 S04 OH4 CH4 + S04 HC03 + HS- + H2O Consortia of methanogenic archaea and SRBs at seeps and in hydrothermally active sediments... 

Some metals, arsenic and mercury for example, may be volatilized by methylation due to activity of anaerobic microorganisms. Arsenic can be methylated by methanogenic Archaea and fungi to volatile toxic dimethylarsine and trimethylarsine or can be converted to less toxic nonvolatile methanearsonic and dimethylarsinic acids by algae [42]. 

The anaerobic digestion of fatty acids, alcohols and organic compounds is accomplished by a syntrophy between H2-producing and H2-consuming methanogenic archaea [6] that favors the better use of the energy content of primary substrates [7]. 

Isoprenyi glyceryl ethers archaeol-like (archaeol Cm-C ), comprising C20-C25 and C25"C25 homologues (an extreme halophilic, thermoacidophilic, and methanogenic Archaea Kates 1993 caldarchaeol-like (caldarchaeol monocyclic C o-C ), comprising bicyclic structures from thermoacidophilic and methanogenic Archaea Kates 1993. (Archaea in bold ce are not meant to be exclusively marine). 

Muller, V., Ruppert, C., and Lemker, T. (1999). Structure and function of the AjAo-ATPases from methanogenic Archaea./ Bioenerg. Biomembr. 31, 15-27. 

As described in Chapter 2, a unique gitonic superelectrophile is considered to be involved in an enzyme system that converts CO2 to methane. Berkessel and Thauer have studied this metal-free hydrogenase enzyme from methanogenic archaea and a mechanism is proposed involving activation through a vicinal-superelectrophilic system (eq 34).50... 

Lyon EJ, Shima S, Buurman G, Chowdhuri S, Batschauer A, Steinbach K, Thauer RK (2004) UV-A/blue-light inactivation of the metal-free hydrogenase (Hmd) from methanogenic archaea. The enzyme contains functional iron after all. Eur. J. Biochem. 271 195-204... 

Geierstanger, B. H., Prasch, T., Griesinger, C., Hartmann, G., Buurman, G., and Thauer, R. K., 1998, Catalytic mechanism of the metal-free hydrogenase from methanogenic archaea Reversed stereospecificity of the catalytic and noncatalytic reaction, Angew. Chem. Int. Ed. 3 7(23) 3300n3303. 

---