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Orthologs of the small RPB8 subunit of the eukaryotic RNA polymerases are conserved in hyperthermophilic Crenarchaeota and "Korarchaeota"

Journal Article · · Biology Direct
 [1];  [2];  [3]
  1. National Library of Medicine (NLM), Bethesda, MD (United States); DOE/OSTI
  2. National Library of Medicine (NLM), Bethesda, MD (United States)
  3. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Although most of the key components of the transcription apparatus, and in particular, RNA polymerase (RNAP) subunits, are conserved between archaea and eukaryotes, no archaeal homologs of the small RPB8 subunit of eukaryotic RNAP have been detected. We report that orthologs of RPB8 are encoded in all sequenced genomes of hyperthermophilic Crenarchaeota and a recently sequenced "korarchaeal" genome, but not in Euryarchaeota or the mesophilic crenarchaeon Cenarchaeum symbiosum. These findings suggest that all 12 core subunits of eukaryotic RNAPs were already present in the last common ancestor of the extant archaea.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Institutes of Health (NIH); USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1626622
Journal Information:
Biology Direct, Journal Name: Biology Direct Journal Issue: 1 Vol. 2; ISSN 1745-6150
Publisher:
BioMed CentralCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (22)

The evolution of the cytoskeleton journal August 2011
Rearrangement of the RNA polymerase subunit H and the lower jaw in archaeal elongation complexes journal December 2009
Insights into the evolution of Archaea and eukaryotic protein modifier systems revealed by the genome of a novel archaeal group journal December 2010
Origin of eukaryotes from within archaea, archaeal eukaryome and bursts of gene gain: eukaryogenesis just made easier? journal September 2015
The Dispersed Archaeal Eukaryome and the Complex Archaeal Ancestor of Eukaryotes journal April 2014
Fidelity in Archaeal Information Processing journal January 2010
Identification of a crenarchaeal orthologue of Elf1: implications for chromatin and transcription in Archaea journal July 2009
Identification of an ortholog of the eukaryotic RNA polymerase III subunit RPC34 in Crenarchaeota and Thaumarchaeota suggests specialization of RNA polymerases for coding and non-coding RNAs in Archaea journal January 2009
The origin and early evolution of eukaryotes in the light of phylogenomics journal January 2010
Analyse von hybriden eukaryotisch-archaeellen RNA-Polymerasen unter besonderer Berücksichtigung der Untereinheiten Rpb5, RpoH und Rpb12, RpoP text January 2010
Die Funktion von Transkriptionsfaktor (II) B und Mechanismus der Transkriptionsinitiation text January 2011
Activation of a chimeric Rpb5/RpoH subunit using library selection text January 2014
Charakterisierung von RNA-Polymerase-Mutanten und von Transkriptionsfaktoren mit Hilfe des genetischen Systems von Pyrococcus furiosus text January 2014
An archaeal origin of eukaryotes supports only two primary domains of life journal December 2013
Archaea and the origin of eukaryotes journal November 2017
Archaeal transcription: making up for lost time journal January 2013
The cutting edge of archaeal transcription journal November 2018
β-Actin regulates interleukin 6-induced p21 transcription by interacting with the Rpb5 and Rpb7 subunits of RNA polymerase II journal August 2016
Exploring microbial dark matter to resolve the deep archaeal ancestry of eukaryotes
  • Saw, Jimmy H.; Spang, Anja; Zaremba-Niedzwiedzka, Katarzyna
  • Philosophical Transactions of the Royal Society B: Biological Sciences, Vol. 370, Issue 1678 https://doi.org/10.1098/rstb.2014.0328
journal September 2015
The Complete Genome Sequence of Thermoproteus tenax: A Physiologically Versatile Member of the Crenarchaeota journal October 2011
An archaeal origin for the actin cytoskeleton: Implications for eukaryogenesis journal November 2011
The complete genome sequence of Thermoproteus tenax: a physiologically versatile member of the Crenarchaeota. text January 2011

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