6T8B

FtsK motor domain with dsDNA, translocating state


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.65 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

FtsK in motion reveals its mechanism for double-stranded DNA translocation.

Jean, N.L.Rutherford, T.J.Lowe, J.

(2020) Proc Natl Acad Sci U S A 117: 14202-14208

  • DOI: 10.1073/pnas.2001324117
  • Primary Citation of Related Structures:  
    6T8O, 6T8B, 6T8G

  • PubMed Abstract: 
  • FtsK protein contains a fast DNA motor that is involved in bacterial chromosome dimer resolution. During cell division, FtsK translocates double-stranded DNA until both dif recombination sites are placed at mid cell for subsequent dimer resolution ...

    FtsK protein contains a fast DNA motor that is involved in bacterial chromosome dimer resolution. During cell division, FtsK translocates double-stranded DNA until both dif recombination sites are placed at mid cell for subsequent dimer resolution. Here, we solved the 3.6-Å resolution electron cryo-microscopy structure of the motor domain of FtsK while translocating on its DNA substrate. Each subunit of the homo-hexameric ring adopts a unique conformation and one of three nucleotide states. Two DNA-binding loops within four subunits form a pair of spiral staircases within the ring, interacting with the two DNA strands. This suggests that simultaneous conformational changes in all ATPase domains at each catalytic step generate movement through a mechanism related to filament treadmilling. While the ring is only rotating around the DNA slowly, it is instead the conformational states that rotate around the ring as the DNA substrate is pushed through.


    Related Citations: 
    • FtsK in motion reveals its mechanism for double-stranded DNA translocation
      Jean, N.L., Rutherford, T.J., Lowe, J.
      () Biorxiv --: --

    Organizational Affiliation

    Structural Studies Division, Medical Research Council Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom jyl@mrc-lmb.cam.ac.uk.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DNA translocase FtsKA, B, C, D, E, F491Pseudomonas aeruginosa PAO1Mutation(s): 0 
Gene Names: ftsKPA2615
Find proteins for Q9I0M3 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore Q9I0M3 
Go to UniProtKB:  Q9I0M3
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 2
    MoleculeChainsLengthOrganismImage
    dsDNA substrateG, H20synthetic construct
    Experimental Data & Validation

    Experimental Data

    • Method: ELECTRON MICROSCOPY
    • Resolution: 3.65 Å
    • Aggregation State: PARTICLE 
    • Reconstruction Method: SINGLE PARTICLE 

    Structure Validation

    View Full Validation Report



    Entry History & Funding Information

    Deposition Data

    • Deposited Date: 2019-10-24 
    • Released Date: 2019-11-20 
    • Deposition Author(s): Jean, N.L., Lowe, J.

    Funding OrganizationLocationGrant Number
    Wellcome TrustUnited Kingdom202754/Z/16/Z
    European Molecular Biology OrganizationALTF-128-2016

    Revision History  (Full details and data files)

    • Version 1.0: 2019-11-20
      Type: Initial release
    • Version 1.1: 2020-06-24
      Changes: Database references
    • Version 1.2: 2020-07-01
      Changes: Database references