3LTI

Crystal structure of the Escherichia coli RNA polymerase beta subunit beta2-betai4 domains


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.209 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Complete structural model of Escherichia coli RNA polymerase from a hybrid approach.

Opalka, N.Brown, J.Lane, W.J.Twist, K.A.Landick, R.Asturias, F.J.Darst, S.A.

(2010) PLoS Biol 8: e1000483

  • DOI: 10.1371/journal.pbio.1000483
  • Primary Citation of Related Structures:  
    3LU0, 3LTI

  • PubMed Abstract: 
  • The Escherichia coli transcription system is the best characterized from a biochemical and genetic point of view and has served as a model system. Nevertheless, a molecular understanding of the details of E. coli transcription and its regulation, and therefore its full exploitation as a model system, has been hampered by the absence of high-resolution structural information on E ...

    The Escherichia coli transcription system is the best characterized from a biochemical and genetic point of view and has served as a model system. Nevertheless, a molecular understanding of the details of E. coli transcription and its regulation, and therefore its full exploitation as a model system, has been hampered by the absence of high-resolution structural information on E. coli RNA polymerase (RNAP). We use a combination of approaches, including high-resolution X-ray crystallography, ab initio structural prediction, homology modeling, and single-particle cryo-electron microscopy, to generate complete atomic models of E. coli core RNAP and an E. coli RNAP ternary elongation complex. The detailed and comprehensive structural descriptions can be used to help interpret previous biochemical and genetic data in a new light and provide a structural framework for designing experiments to understand the function of the E. coli lineage-specific insertions and their role in the E. coli transcription program.


    Organizational Affiliation

    The Rockefeller University, New York, New York, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit betaA296Escherichia coli K-12Mutation(s): 0 
Gene Names: b3987groNJW3950nitBrifronrpoBstlstvtabD
EC: 2.7.7.6
Find proteins for P0A8V2 (Escherichia coli (strain K12))
Explore P0A8V2 
Go to UniProtKB:  P0A8V2
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
MLY
Query on MLY
AL-PEPTIDE LINKINGC8 H18 N2 O2LYS
MSE
Query on MSE
AL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.209 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 106.314α = 90
b = 52.039β = 90
c = 61.826γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
SHARPphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-10-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2011-09-21
    Changes: Database references
  • Version 1.3: 2011-11-23
    Changes: Database references
  • Version 1.4: 2012-02-22
    Changes: Database references