2R6E

Crystal Form B2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 5.02 Å
  • R-Value Free: 0.397 
  • R-Value Work: 0.393 
  • R-Value Observed: 0.394 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure of hexameric DnaB helicase and its complex with a domain of DnaG primase

Bailey, S.Eliason, W.K.Steitz, T.A.

(2007) Science 318: 459-463

  • DOI: 10.1126/science.1147353
  • Primary Citation of Related Structures:  
    2R6E, 2R6D, 2R6C, 2R6A

  • PubMed Abstract: 
  • The complex between the DnaB helicase and the DnaG primase unwinds duplex DNA at the eubacterial replication fork and synthesizes the Okazaki RNA primers. The crystal structures of hexameric DnaB and its complex with the helicase binding domain (HBD) ...

    The complex between the DnaB helicase and the DnaG primase unwinds duplex DNA at the eubacterial replication fork and synthesizes the Okazaki RNA primers. The crystal structures of hexameric DnaB and its complex with the helicase binding domain (HBD) of DnaG reveal that within the hexamer the two domains of DnaB pack with strikingly different symmetries to form a distinct two-layered ring structure. Each of three bound HBDs stabilizes the DnaB hexamer in a conformation that may increase its processivity. Three positive, conserved electrostatic patches on the N-terminal domain of DnaB may also serve as a binding site for DNA and thereby guide the DNA to a DnaG active site.


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry and Howard Hughes Medical Institute, Yale University, New Haven, CT 06520, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Replicative helicaseAB454Geobacillus stearothermophilusMutation(s): 0 
Gene Names: dnaB
EC: 3.6.4.12
Find proteins for Q9X4C9 (Geobacillus stearothermophilus)
Explore Q9X4C9 
Go to UniProtKB:  Q9X4C9
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 5.02 Å
  • R-Value Free: 0.397 
  • R-Value Work: 0.393 
  • R-Value Observed: 0.394 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 199.797α = 90
b = 199.797β = 90
c = 195.036γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
SOLVEphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-11-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance