2IUS

E. coli FtsK motor domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.246 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Double-Stranded DNA Translocation: Structure and Mechanism of Hexameric Ftsk

Massey, T.H.Mercogliano, C.P.Yates, J.Sherratt, D.J.Lowe, J.

(2006) Mol.Cell 23: 457

  • DOI: 10.1016/j.molcel.2006.06.019
  • Primary Citation of Related Structures:  2IUT, 2IUU

  • PubMed Abstract: 
  • FtsK is a DNA translocase that coordinates chromosome segregation and cell division in bacteria. In addition to its role as activator of XerCD site-specific recombination, FtsK can translocate double-stranded DNA (dsDNA) rapidly and directionally and ...

    FtsK is a DNA translocase that coordinates chromosome segregation and cell division in bacteria. In addition to its role as activator of XerCD site-specific recombination, FtsK can translocate double-stranded DNA (dsDNA) rapidly and directionally and reverse direction. We present crystal structures of the FtsK motor domain monomer, showing that it has a RecA-like core, the FtsK hexamer, and also showing that it is a ring with a large central annulus and a dodecamer consisting of two hexamers, head to head. Electron microscopy (EM) demonstrates the DNA-dependent existence of hexamers in solution and shows that duplex DNA passes through the middle of each ring. Comparison of FtsK monomer structures from two different crystal forms highlights a conformational change that we propose is the structural basis for a rotary inchworm mechanism of DNA translocation.


    Organizational Affiliation

    Division of Molecular Genetics, Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA TRANSLOCASE FTSK
A, B, C, D, E, F
512Escherichia coli (strain K12)Gene Names: ftsK
Find proteins for P46889 (Escherichia coli (strain K12))
Go to UniProtKB:  P46889
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.246 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 97.600α = 90.00
b = 117.200β = 100.50
c = 132.800γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-08-29
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance