3EUK

Crystal structure of MukE-MukF(residues 292-443)-MukB(head domain)-ATPgammaS complex, asymmetric dimer


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.00 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.271 

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This is version 1.5 of the entry. See complete history


Literature

Structural studies of a bacterial condensin complex reveal ATP-dependent disruption of intersubunit interactions.

Woo, J.S.Lim, J.H.Shin, H.C.Suh, M.K.Ku, B.Lee, K.H.Joo, K.Robinson, H.Lee, J.Park, S.Y.Ha, N.C.Oh, B.H.

(2009) Cell 136: 85-96

  • DOI: 10.1016/j.cell.2008.10.050
  • Primary Citation of Related Structures:  
    3EUH, 3EUJ, 3EUK

  • PubMed Abstract: 
  • Condensins are key mediators of chromosome condensation across organisms. Like other condensins, the bacterial MukBEF condensin complex consists of an SMC family protein dimer containing two ATPase head domains, MukB, and two interacting subunits, MukE and MukF ...

    Condensins are key mediators of chromosome condensation across organisms. Like other condensins, the bacterial MukBEF condensin complex consists of an SMC family protein dimer containing two ATPase head domains, MukB, and two interacting subunits, MukE and MukF. We report complete structural views of the intersubunit interactions of this condensin along with ensuing studies that reveal a role for the ATPase activity of MukB. MukE and MukF together form an elongated dimeric frame, and MukF's C-terminal winged-helix domains (C-WHDs) bind MukB heads to constitute closed ring-like structures. Surprisingly, one of the two bound C-WHDs is forced to detach upon ATP-mediated engagement of MukB heads. This detachment reaction depends on the linker segment preceding the C-WHD, and mutations on the linker restrict cell growth. Thus ATP-dependent transient disruption of the MukB-MukF interaction, which creates openings in condensin ring structures, is likely to be a critical feature of the functional mechanism of condensins.


    Organizational Affiliation

    Center for Biomolecular Recognition and Division of Molecular and Life Science, Department of Life Sciences, Pohang University of Science and Technology, Pohang, Kyungbuk, 790-784, Korea.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Chromosome partition protein mukB, LinkerA,
B [auth C],
D [auth F],
E [auth H]
483[Haemophilus] ducreyi 35000HPMutation(s): 1 
Gene Names: mukBHD_1582
UniProt
Find proteins for Q7VL96 (Haemophilus ducreyi (strain 35000HP / ATCC 700724))
Explore Q7VL96 
Go to UniProtKB:  Q7VL96
Entity Groups  
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UniProt GroupQ7VL96
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Chromosome partition protein mukFC [auth E],
F [auth J]
152[Haemophilus] ducreyiMutation(s): 0 
Gene Names: mukFHD_1585
UniProt
Find proteins for Q7VL94 (Haemophilus ducreyi (strain 35000HP / ATCC 700724))
Explore Q7VL94 
Go to UniProtKB:  Q7VL94
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UniProt GroupQ7VL94
Protein Feature View
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Chromosome partition protein mukEG [auth L],
H [auth M]
238[Haemophilus] ducreyiMutation(s): 0 
Gene Names: mukEHD_1584
UniProt
Find proteins for Q7VL95 (Haemophilus ducreyi (strain 35000HP / ATCC 700724))
Explore Q7VL95 
Go to UniProtKB:  Q7VL95
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ7VL95
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.00 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.271 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 172.414α = 90
b = 172.414β = 90
c = 491.587γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-01-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2012-02-15
    Changes: Non-polymer description
  • Version 1.3: 2017-06-28
    Changes: Source and taxonomy
  • Version 1.4: 2017-10-25
    Changes: Refinement description
  • Version 1.5: 2021-11-10
    Changes: Database references, Derived calculations