1hqm

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==Overview==
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{{ABSTRACT_11158566}}
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Bacterial DNA-dependent RNA polymerase (RNAP) has subunit composition beta'betaalpha(I)alpha(II)omega. The role of omega has been unclear. We show that omega is homologous in sequence and structure to RPB6, an essential subunit shared in eukaryotic RNAP I, II, and III. In Escherichia coli, overproduction of omega suppresses the assembly defect caused by substitution of residue 1362 of the largest subunit of RNAP, beta'. In yeast, overproduction of RPB6 suppresses the assembly defect caused by the equivalent substitution in the largest subunit of RNAP II, RPB1. High-resolution structural analysis of the omega-beta' interface in bacterial RNAP, and comparison with the RPB6-RPB1 interface in yeast RNAP II, confirms the structural relationship and suggests a "latching" mechanism for the role of omega and RPB6 in promoting RNAP assembly.
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==About this Structure==
==About this Structure==
1HQM is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1ddq 1ddq]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HQM OCA].
1HQM is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1ddq 1ddq]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HQM OCA].
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==Reference==
 
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Bacterial RNA polymerase subunit omega and eukaryotic RNA polymerase subunit RPB6 are sequence, structural, and functional homologs and promote RNA polymerase assembly., Minakhin L, Bhagat S, Brunning A, Campbell EA, Darst SA, Ebright RH, Severinov K, Proc Natl Acad Sci U S A. 2001 Jan 30;98(3):892-7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11158566 11158566]
 
[[Category: DNA-directed RNA polymerase]]
[[Category: DNA-directed RNA polymerase]]
[[Category: Protein complex]]
[[Category: Protein complex]]
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[[Category: Transcription]]
[[Category: Transcription]]
[[Category: Transferase]]
[[Category: Transferase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 19:07:51 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jun 25 19:16:17 2008''

Revision as of 16:16, 25 June 2008

Image:1hqm.png

Template:STRUCTURE 1hqm

CRYSTAL STRUCTURE OF THERMUS AQUATICUS CORE RNA POLYMERASE-INCLUDES COMPLETE STRUCTURE WITH SIDE-CHAINS (EXCEPT FOR DISORDERED REGIONS)-FURTHER REFINED FROM ORIGINAL DEPOSITION-CONTAINS ADDITIONAL SEQUENCE INFORMATION


Template:ABSTRACT 11158566

About this Structure

1HQM is a Protein complex structure of sequences from Thermus aquaticus. This structure supersedes the now removed PDB entry 1ddq. Full crystallographic information is available from OCA.

Page seeded by OCA on Wed Jun 25 19:16:17 2008

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