Ribonucleotide reductase in cell extracts of Methanobacterium thermoautotrophicum
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چکیده
منابع مشابه
Origin of hydrogen in methane produced by Methanobacterium thermoautotrophicum.
The production of deuterated methane by Methanobacterium thermoautotrophicum in H2O-D2O mixtures was examined by high-resolution mass spectrometry. The hydrogen in the methane arose solely from water and not from hydrogen gas. Hydrogen gas served only as an electron source in methanogenesis. A whole-cell product isotope discrimination of 1.5 favoring hydrogen over deuterium was observed in meth...
متن کاملEnrichment of Thermophilic Propionate-Oxidizing Bacteria in Syntrophy with Methanobacterium thermoautotrophicum or Methanobacterium thermoformicicum.
Thermophilic propionate-oxidizing, proton-reducing bacteria were enriched from the granular methanogenic sludge of a bench-scale upflow anaerobic sludge bed reactor operated at 55 degrees C with a mixture of volatile fatty acids as feed. Thermophilic hydrogenotrophic methanogens had a high decay rate. Therefore, stable, thermophilic propionate-oxidizing cultures could not be obtained by using t...
متن کاملNMR structure note Solution structure of MTH0776 from Methanobacterium thermoautotrophicum
Godwin Amegbey, Paul Stothard, Ekaterina Kuznetsova, Adelinda Yee, Cheryl H. Arrowsmith & David S. Wishart* Departments of Computing Science and Biological Sciences, University of Alberta, Edmonton, Alberta, Canada T6G 2E8; Banting and Best Department of Medical Research, University of Toronto, Toronto, Ontario, Canada M5G 1L6; Department of Medical Biophysics, University of Toronto, Toronto, O...
متن کاملMethanobacterium thermoautotrophicum RNA polymerase and transcription in vitro.
RNA polymerase (RNAP) purified from Methanobacterium thermoautotrophicum DeltaH has been shown to initiate transcription accurately in vitro from the hmtB archaeal histone promoter with either native or recombinant forms of the M. thermoautotrophicum TATA-binding protein and transcription factor TFB. Efforts to obtain transcription initiation from hydrogen-regulated methane gene promoters were,...
متن کاملThe Methanobacterium thermoautotrophicum MCM protein can form heptameric rings.
Mini-chromosome maintenance (MCM) proteins form a conserved family found in all eukaryotes and are essential for DNA replication. They exist as heteromultimeric complexes containing as many as six different proteins. These complexes are believed to be the replicative helicases, functioning as hexameric rings at replication forks. In most archaea a single MCM protein exists. The protein from Met...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1987
ISSN: 0014-5793
DOI: 10.1016/0014-5793(87)81215-2