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  RNA polymerase III subunit architecture and implications for open promoter complex formation

Wu, C.-C., Herzog, F., Jennebach, S., Lin, Y.-C., Pai, C.-Y., Aebersold, R., et al. (2012). RNA polymerase III subunit architecture and implications for open promoter complex formation. Proceedings of the National Academy of Sciences of the USA, 109(47), 19232-19237. doi:10.1073/pnas.1211665109.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-3CB3-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-C511-7
Genre: Journal Article

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Wu, C.-C., Author
Herzog, F., Author
Jennebach, S., Author
Lin, Y.-C., Author
Pai, C.-Y., Author
Aebersold, R., Author
Cramer, P.1, Author              
Chen, H.-T., Author
Affiliations:
1Department of Molecular Biology, MPI for Biophysical Chemistry, Max Planck Society, ou_1863498              

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 Abstract: Transcription initiation by eukaryotic RNA polymerase (Pol) III relies on the TFIIE-related subcomplex C82/34/31. Here we combine crosslinking and hydroxyl radical probing to position the C82/34/31 subcomplex around the Pol III active center cleft. The extended winged helix (WH) domains 1 and 4 of C82 localize to the polymerase domains clamp head and clamp core, respectively, and the two WH domains of C34 span the polymerase cleft from the coiled-coil region of the clamp to the protrusion. The WH domains of C82 and C34 apparently cooperate with other mobile regions flanking the cleft during promoter DNA binding, opening, and loading. Together with published data, our results complete the subunit architecture of Pol III and indicate that all TFIIE-related components of eukaryotic and archaeal transcription systems adopt an evolutionarily conserved location in the upper part of the cleft that supports their functions in open promoter complex formation and stabilization.

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Language(s): eng - English
 Dates: 2012-11-06
 Publication Status: Published online
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 Rev. Method: Peer
 Identifiers: DOI: 10.1073/pnas.1211665109
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Title: Proceedings of the National Academy of Sciences of the USA
Source Genre: Journal
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Pages: - Volume / Issue: 109 (47) Sequence Number: - Start / End Page: 19232 - 19237 Identifier: -