Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 262.37 kDa 
• Atom Count: 18063 
• Modelled Residue Count: 2289 
• Deposited Residue Count: 2302 
• Unique protein chains: 1

2EYQ

Crystal structure of Escherichia coli transcription-repair coupling factor

• DOI: 10.2210/pdb2EYQ/pdb

• Classification: HYDROLASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2005-11-09 Released: 2006-02-28 
• Deposition Author(s): Deaconescu, A.M., Darst, S.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.20 Å
• R-Value Free: 0.295 
• R-Value Work: 0.234 
• R-Value Observed: 0.234 

Literature

Structural basis for bacterial transcription-coupled DNA repair.

Deaconescu, A.M., Chambers, A.L., Smith, A.J., Nickels, B.E., Hochschild, A., Savery, N.J., Darst, S.A.

(2006) Cell 124: 507-520

• PubMed: 16469698 
• DOI: 10.1016/j.cell.2005.11.045
• Primary Citation of Related Structures:  
  2EYQ


• PubMed Abstract: 
  

Coupling of transcription and DNA repair in bacteria is mediated by transcription-repair coupling factor (TRCF, the product of the mfd gene), which removes transcription elongation complexes stalled at DNA lesions and recruits the nucleotide excision repair machinery to the site. Here we describe the 3.2 A-resolution X-ray crystal structure of Escherichia coli TRCF. The structure consists of a compact arrangement of eight domains, including a translocation module similar to the SF2 ATPase RecG, and a region of structural similarity to UvrB. Biochemical and genetic experiments establish that another domain with structural similarity to the Tudor-like domain of the transcription elongation factor NusG plays a critical role in TRCF/RNA polymerase interactions. Comparison with the translocation module of RecG as well as other structural features indicate that TRCF function involves large-scale conformational changes. These data, along with a structural model for the interaction of TRCF with the transcription elongation complex, provide mechanistic insights into TRCF function.

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Organizational Affiliation: 

The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transcription-repair coupling factor	A, B	1151	Escherichia coli	Mutation(s): 0  Gene Names: mfd EC: 3.6.4
Find proteins for P30958 (Escherichia coli (strain K12)) Explore P30958  Go to UniProtKB:  P30958

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EPE	A, B	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID C8 H18 N2 O4 S JKMHFZQWWAIEOD-UHFFFAOYSA-N
SO4	A, B	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.20 Å
• R-Value Free: 0.295 
• R-Value Work: 0.234 
• R-Value Observed: 0.234 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 151.87	α = 90
b = 161.99	β = 105.09
c = 161.73	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
SCALEPACK	data scaling
MLPHARE	phasing
CNS	refinement
HKL-2000	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-11-09 
• Released Date: 2006-02-28 
Deposition Author(s): Deaconescu, A.M., Darst, S.A.

Revision History  

• Version 1.0: 2006-02-28
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance