3E7H

The crystal structure of the beta subunit of the DNA-directed RNA polymerase from Vibrio cholerae O1 biovar eltor

• PDB DOI: https://doi.org/10.2210/pdb3E7H/pdb

• Classification: TRANSFERASE
• Organism(s): Vibrio cholerae
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-08-18 Released: 2008-10-14 
• Deposition Author(s): Zhang, R., Wu, R., Freeman, L., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 
  0.229 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.181 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.183 (Depositor) 

Literature

The crystal structure of the beta subunit of the DNA-directed RNA polymerase from Vibrio cholerae O1 biovar eltor

Zhang, R., Wu, R., Freeman, L., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 22.93 kDa 
• Atom Count: 1,858 
• Modelled Residue Count: 203 
• Deposited Residue Count: 206 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA-directed RNA polymerase subunit beta	A, B	103	Vibrio cholerae	Mutation(s): 0  Gene Names: rpoB, VC_0328 EC: 2.7.7.6
UniProt
Find proteins for Q9KV30 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KV30  Go to UniProtKB:  Q9KV30

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free:  0.229 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.181 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.183 (Depositor) 

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.035	α = 90
b = 65.035	β = 90
c = 115.981	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-10-14 
Deposition Author(s): Zhang, R., Wu, R., Freeman, L., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2008-10-14
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-10-25
  Changes: Refinement description
• Version 1.3: 2024-02-21
  Changes: Data collection, Database references