1T5C

Crystal structure of the motor domain of human kinetochore protein CENP-E


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.228 

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Literature

Crystal structure of the motor domain of the human kinetochore protein CENP-E.

Garcia-Saez, I.Yen, T.Wade, R.H.Kozielski, F.

(2004) J Mol Biol 340: 1107-1116

  • DOI: 10.1016/j.jmb.2004.05.053
  • Primary Citation of Related Structures:  
    1T5C

  • PubMed Abstract: 
  • The human kinetochore is a highly complex macromolecular structure that connects chromosomes to spindle microtubules (MTs) in order to facilitate accurate chromosome segregation. Centromere-associated protein E (CENP-E), a member of the kinesin super ...

    The human kinetochore is a highly complex macromolecular structure that connects chromosomes to spindle microtubules (MTs) in order to facilitate accurate chromosome segregation. Centromere-associated protein E (CENP-E), a member of the kinesin superfamily, is an essential component of the kinetochore, since it is required to stabilize the attachment of chromosomes to spindle MTs, to develop tension across aligned chromosomes, to stabilize spindle poles and to satisfy the mitotic checkpoint. Here we report the 2.5A resolution crystal structure of the motor domain and linker region of human CENP-E with MgADP bound in the active site. This structure displays subtle but important differences compared to the structures of human Eg5 and conventional kinesin. Our structure reveals that the CENP-E linker region is in a "docked" position identical to that in the human plus-end directed conventional kinesin. CENP-E has many advantages as a potential anti-mitotic drug target and this crystal structure of human CENP-E will provide a starting point for high throughput virtual screening of potential inhibitors.


    Related Citations: 
    • Crystallization and preliminary crystallographic analysis of the motor domain of human kinetochore-associated protein CENP-E using an automated crystallization procedure.
      Garcia-Saez, I., Blot, D., Kahn, R., Kozielski, F.
      (2004) Acta Crystallogr D Biol Crystallogr 60: 1158

    Organizational Affiliation

    Laboratoire de Microscopie Electronique Structurale, Institut de Biologie Structurale, 41 rue Jules Horowitz, 38027 Grenoble Cedex 01, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Centromeric protein EAB349Homo sapiensMutation(s): 0 
Gene Names: CENPE
Find proteins for Q02224 (Homo sapiens)
Explore Q02224 
Go to UniProtKB:  Q02224
NIH Common Fund Data Resources
PHAROS  Q02224
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download CCD File 
A, B
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
PIN
Query on PIN

Download CCD File 
A
PIPERAZINE-N,N'-BIS(2-ETHANESULFONIC ACID)
C8 H18 N2 O6 S2
IHPYMWDTONKSCO-UHFFFAOYSA-N
 Ligand Interaction
NO3
Query on NO3

Download CCD File 
A
NITRATE ION
N O3
NHNBFGGVMKEFGY-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.228 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 49.353α = 90
b = 83.7β = 103.05
c = 94.162γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALAdata scaling
AMoREphasing
CNSrefinement
CCP4data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-05-10
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 2.0: 2020-06-17
    Changes: Advisory, Database references, Polymer sequence