4BN2

The crystal structure of kinesin-like protein KIF15


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.69 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.203 

Starting Model: experimental
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This is version 2.2 of the entry. See complete history


Literature

The Crystal Structure and Biochemical Characterization of Kif15: A Bifunctional Molecular Motor Involved in Bipolar Spindle Formation and Neuronal Development

Klejnot, M.Falnikar, A.Ulaganathan, V.Cross, R.A.Baas, P.W.Kozielski, F.

(2014) Acta Crystallogr D Biol Crystallogr 70: 123

  • DOI: https://doi.org/10.1107/S1399004713028721
  • Primary Citation of Related Structures:  
    4BN2

  • PubMed Abstract: 

    Kinesins constitute a superfamily of microtubule-based motor proteins with important cellular functions ranging from intracellular transport to cell division. Some kinesin family members function during the mitotic phase of the eukaryotic cell cycle and are crucial for the successful progression of cell division. In the early stages of mitosis, during prometaphase, certain kinesins are required for the formation of the bipolar spindle, such as Eg5 and Kif15, which seem to possess partially overlapping functions. Because kinesins transform the chemical energy from ATP hydrolysis into mechanical work, inhibition of their function is a tractable approach for drug development. Drugs targeting Eg5 have shown promise as anticancer agents. Kif15 has recently come to the fore because it can substitute the functions of Eg5, and may itself have potential as a prospective drug target. Here, the initial biochemical, kinetic and structural characterization of Kif15 is reported and it is compared with the functionally related motor Eg5. Although Kif15 contains ADP in the catalytic site, its motor-domain structure was captured in the `ATP-like' configuration, with the neck linker docked to the catalytic core. The interaction of Kif15 with microtubules was also investigated and structural differences between these two motors were elucidated which indicate profound differences in their mode of action, in agreement with current models of microtubule cross-linking and sliding.


  • Organizational Affiliation

    The Beatson Institute for Cancer Research, Garscube Estate, Switchback Road, Glasgow G61 1BD, Scotland.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
KINESIN-LIKE PROTEIN KIF15
A, B, C
361Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NS87 (Homo sapiens)
Explore Q9NS87 
Go to UniProtKB:  Q9NS87
PHAROS:  Q9NS87
GTEx:  ENSG00000163808 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9NS87
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.69 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.203 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.08α = 90
b = 90.08β = 90
c = 249.01γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
iMOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-01-15
    Type: Initial release
  • Version 1.1: 2014-01-22
    Changes: Database references, Structure summary
  • Version 2.0: 2019-10-16
    Changes: Advisory, Atomic model, Data collection, Experimental preparation, Other
  • Version 2.1: 2023-12-20
    Changes: Advisory, Data collection, Database references, Derived calculations, Refinement description
  • Version 2.2: 2024-11-13
    Changes: Structure summary