X‐ray crystal structure of the archaeal RNA polymerase
نویسندگان
چکیده
منابع مشابه
Structure of an archaeal RNA polymerase.
Related multisubunit RNA polymerases (RNAPs) carry out gene transcription in all kingdoms of life. Since structural information is limited to bacterial and eukaryotic RNAPs, we determined the cryo-electron microscopic structure of the RNAP from the thermophilic archaeon Pyrococcus furiosus at 13 A resolution. Comparison with eukaryotic RNAP II reveals a conserved architecture, no homologues for...
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All cellular life depends on multisubunit RNAPs (RNA polymerases) that are evolutionarily related through the three domains of life. Archaeal RNAPs encompass 12 subunits that contribute in different ways to the assembly and stability of the enzyme, nucleic acid binding, catalysis and specific regulatory interactions with transcription factors. The recent development of methods to reconstitute a...
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The archaeal RNA polymerase (RNAP) shares structural similarities with eukaryotic RNAP II but requires a reduced subset of general transcription factors for promoter-dependent initiation. To deepen our knowledge of cellular transcription, we have determined the structure of the 13-subunit DNA-directed RNAP from Sulfolobus shibatae at 3.35 Å resolution. The structure contains the full complement...
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BACKGROUND The exosome complex is an essential RNA 3'-end processing and degradation machinery. In archaeal organisms, the exosome consists of a catalytic ring and an RNA-binding ring, both of which were previously reported to assume three-fold symmetry. METHODOLOGY/PRINCIPAL FINDINGS Here we report an asymmetric 2.9 A Sulfolobus solfataricus archaeal exosome structure in which the three-fold...
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ژورنال
عنوان ژورنال: The FASEB Journal
سال: 2007
ISSN: 0892-6638,1530-6860
DOI: 10.1096/fasebj.21.6.lb22-d