3LTI

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.208 

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:  

  • 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 ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase subunit beta
A
296Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rpoB (groN, nitB, rif, ron, stl, stv, tabD)
EC: 2.7.7.6
Find proteins for P0A8V2 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A8V2
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
MLY
Query on MLY
A
L-PEPTIDE LINKINGC8 H18 N2 O2LYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.208 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 106.314α = 90.00
b = 52.039β = 90.00
c = 61.826γ = 90.00
Software Package:
Software NamePurpose
SHARPphasing
HKL-2000data scaling
HKL-2000data reduction
REFMACrefinement
MAR345dtbdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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