2KVQ image
Deposition Date 2010-03-25
Release Date 2010-05-05
Last Version Date 2024-05-22
Entry Detail
PDB ID:
2KVQ
Keywords:
Title:
Solution structure of NusE:NusG-CTD complex
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Conformers Calculated:
20
Conformers Submitted:
18
Selection Criteria:
structures with the lowest energy
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:NusE
Gene (Uniprot):rpsJ
Chain IDs:A (auth: E)
Chain Length:87
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:Transcription antitermination protein nusG
Gene (Uniprot):nusG
Chain IDs:B (auth: G)
Chain Length:63
Number of Molecules:1
Biological Source:Escherichia coli
Ligand Molecules
Primary Citation
A NusE:NusG complex links transcription and translation.
Science 328 501 504 (2010)
PMID: 20413501 DOI: 10.1126/science.1184953

Abstact

Bacterial NusG is a highly conserved transcription factor that is required for most Rho activity in vivo. We show by nuclear magnetic resonance spectroscopy that Escherichia coli NusG carboxyl-terminal domain forms a complex alternatively with Rho or with transcription factor NusE, a protein identical to 30S ribosomal protein S10. Because NusG amino-terminal domain contacts RNA polymerase and the NusG carboxy-terminal domain interaction site of NusE is accessible in the ribosomal 30S subunit, NusG may act as a link between transcription and translation. Uncoupling of transcription and translation at the ends of bacterial operons enables transcription termination by Rho factor, and competition between ribosomal NusE and Rho for NusG helps to explain why Rho cannot terminate translated transcripts.

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Primary Citation of related structures