Thermococcus celer

Thermococcus celer RNA polymerase 11 RPB9 Methanobacterium IQYP Cys/i 2 CysL 24 Cysp 2 CysL... 

Further studies indicate that an ADP-forming acetyl-CoA synthetase is also operative in other extremely thermophilic archaea Pyrococcus woesei, Thermococcus celer, Hyperthermus butylicus, Desulfurococcus amylolyticus), which form acetate as end product of their fermentation [305]. In contrast, in acetate forming (eu)bacteria, acetate formation from acetyl-CoA and the synthesis of ATP from ADP and Pj are catalyzed by two enzymes phosphate acetyltransferase and acetate kinase. This holds true for the extremely thermophilic (eu)bacterium. Thermotoga maritima[3Q5], which ferments... 

Fig. 21. Comparison of the projection structures of the surface protein from various archaea. From ref [139]. (A) Hyperthermus butylicus (lattice constant 25.8 nm) (B) Pyrodictium occuUum (lattice constant 21.8nm) (C) Archaeoglobus fulgidus (lattice constant 17.5nm) (D) Sulfolobus sp. (strain B6/2) (lattice constant 21.0nm) (E) Thermococcus celer (lattice constant IS.Onm) (F) Desulfumcoccus mobilis (lattice constant 18.0 nm).

Abbreviations Asa, Artemia salina Dme, Drosophila melanogaster Hsa, Homo sapiens Egr, Euglena gracilis, Ddi, Dictyostelium discoideum Sso, S. solfataricus Tee, Thermococcus celer Pwo, Pyrococcus woesei Mva, M. vannielii Hma, Halobacterium marismortui Tac, Thermoplasma acidophilum Tma, Thermotoga marilima Tth, Thermus thermophilus Eco, E. coli Mlu, Micrococcus luteus, Spl, Spirulina platensis Ech, E. gracilis chloroplast Smt, Saccharomyces cerevisiae mitochondria. 

Abbreviations used SS, Sulfolobus solfataricus TA, Thermoplasma acidophilum DM, Desidfuro-coccus mobilis TC, Thermococcus celer TT, Thermoproleus tenax MV, Methanococcus vannielii MF, Methanobacterium formicicum HF, Haloferax mediterranei. 

Archaeal chromosomes have been shown to be circular in three cases. For Thermococcus celer [12], restriction mapping of the entire chromosome with three rare-cutting enzymes clearly demonstrated circularity. Sulfolobus solfataricus DNA gives two... 

Rpb9 C-terminal domain Thermococcus celer NMR — lqyp Wang et al., 1998... 

Figure 6.13 Examples of cyclic polysulfides identified in Thermococcus celer, T. tadjuricus and 7i acidaminovorans. Lenthionine is the first compound found with a seven-membered cycle (R- = R2 = H) (Ritzau et al., 1993).

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