1B79

N-TERMINAL DOMAIN OF DNA REPLICATION PROTEIN DNAB


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.263 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the N-terminal domain of the DnaB hexameric helicase.

Fass, D.Bogden, C.E.Berger, J.M.

(1999) Structure Fold.Des. 7: 691-698


  • PubMed Abstract: 
  • The hexameric helicase DnaB unwinds the DNA duplex at the Escherichia coli chromosome replication fork. Although the mechanism by which DnaB both couples ATP hydrolysis to translocation along DNA and denatures the duplex is unknown, a change in the q ...

    The hexameric helicase DnaB unwinds the DNA duplex at the Escherichia coli chromosome replication fork. Although the mechanism by which DnaB both couples ATP hydrolysis to translocation along DNA and denatures the duplex is unknown, a change in the quaternary structure of the protein involving dimerization of the N-terminal domain has been observed and may occur during the enzymatic cycle. This N-terminal domain is required both for interaction with other proteins in the primosome and for DnaB helicase activity. Knowledge of the structure of this domain may contribute to an understanding of its role in DnaB function.


    Organizational Affiliation

    Whitehead Institute, Cambridge, Massachusetts 02142, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DnaB Helicase
A, B, C, D
119Escherichia coli (strain K12)Gene Names: dnaB (groP, grpA)
EC: 3.6.4.12
Find proteins for P0ACB0 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ACB0
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.263 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 35.300α = 90.00
b = 66.400β = 93.80
c = 107.000γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
SHARPphasing
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-06-30
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance