Abstract:
:The archaeal and eukaryotic evolutionary domains diverged from each other approximately 2 billion years ago, but many of the core components of their transcriptional and translational machineries still display a readily recognizable degree of similarity in their primary structures. The F and P subunits present in archaeal RNA polymerases were only recently identified in a purified archaeal RNA polymerase preparation and, on the basis of localized sequence homologies, tentatively identified as archaeal versions of the eukaryotic RPB4 and RPB12 RNA polymerase subunits, respectively. We prepared recombinant versions of the F and P subunits from Methanococcus jannaschii and used them in in vitro and in vivo protein interaction assays to demonstrate that they interact with other archaeal subunits in a manner predicted from their eukaryotic counterparts. The overall structural conservation of the M. jannaschii F subunit, although not readily recognizable on the primary amino acid sequence level, is sufficiently high to allow the formation of an archaeal-human F-RPB7 hybrid complex.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Werner F,Eloranta JJ,Weinzierl ROdoi
10.1093/nar/28.21.4299keywords:
subject
Has Abstractpub_date
2000-11-01 00:00:00pages
4299-305issue
21eissn
0305-1048issn
1362-4962journal_volume
28pub_type
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