3J2U

Kinesin-13 KLP10A HD in complex with CS-tubulin and a microtubule


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 10.8 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural model for tubulin recognition and deformation by Kinesin-13 microtubule depolymerases.

Asenjo, A.B.Chatterjee, C.Tan, D.Depaoli, V.Rice, W.J.Diaz-Avalos, R.Silvestry, M.Sosa, H.

(2013) Cell Rep 3: 759-768

  • DOI: https://doi.org/10.1016/j.celrep.2013.01.030
  • Primary Citation of Related Structures:  
    3J2U

  • PubMed Abstract: 

    To elucidate the structural basis of the mechanism of microtubule depolymerization by kinesin-13s, we analyzed complexes of tubulin and the Drosophila melanogaster kinesin-13 KLP10A by electron microscopy (EM) and fluorescence polarization microscopy. We report a nanometer-resolution (1.1 nm) cryo-EM three-dimensional structure of the KLP10A head domain (KLP10AHD) bound to curved tubulin. We found that binding of KLP10AHD induces a distinct tubulin configuration with displacement (shear) between tubulin subunits in addition to curvature. In this configuration, the kinesin-binding site differs from that in straight tubulin, providing an explanation for the distinct interaction modes of kinesin-13s with the microtubule lattice or its ends. The KLP10AHD-tubulin interface comprises three areas of interaction, suggesting a crossbow-type tubulin-bending mechanism. These areas include the kinesin-13 family conserved KVD residues, and as predicted from the crossbow model, mutating these residues changes the orientation and mobility of KLP10AHDs interacting with the microtubule.


  • Organizational Affiliation

    Department of Physiology and Biophysics, Albert Einstein College of Medicine, Bronx, NY 10461, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Kinesin-like protein Klp10AA [auth K]374Drosophila melanogasterMutation(s): 0 
Gene Names: Klp10ACG1453
UniProt
Find proteins for Q960Z0 (Drosophila melanogaster)
Explore Q960Z0 
Go to UniProtKB:  Q960Z0
Entity Groups  
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UniProt GroupQ960Z0
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Tubulin alpha-1A chainB [auth A],
D [auth C]
451Bos taurusMutation(s): 0 
UniProt
Find proteins for P81947 (Bos taurus)
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Go to UniProtKB:  P81947
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UniProt GroupP81947
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Tubulin beta-2B chainC [auth B],
E [auth D]
445Bos taurusMutation(s): 0 
UniProt
Find proteins for Q6B856 (Bos taurus)
Explore Q6B856 
Go to UniProtKB:  Q6B856
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UniProt GroupQ6B856
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 10.8 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONCustom
RECONSTRUCTIONIHRSR
RECONSTRUCTIONSPIDER

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-03-06
    Type: Initial release
  • Version 1.1: 2013-04-10
    Changes: Database references
  • Version 1.2: 2018-07-18
    Changes: Author supporting evidence, Data collection
  • Version 1.3: 2024-02-21
    Changes: Data collection, Database references, Derived calculations, Refinement description