4P0T

Crystal structure of human centromere protein M


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.49 Å
  • R-Value Free: 0.164 
  • R-Value Work: 0.124 
  • R-Value Observed: 0.127 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

The pseudo GTPase CENP-M drives human kinetochore assembly.

Basilico, F.Maffini, S.Weir, J.R.Prumbaum, D.Rojas, A.M.Zimniak, T.De Antoni, A.Jeganathan, S.Voss, B.van Gerwen, S.Krenn, V.Massimiliano, L.Valencia, A.Vetter, I.R.Herzog, F.Raunser, S.Pasqualato, S.Musacchio, A.

(2014) Elife 3: e02978-e02978

  • DOI: 10.7554/eLife.02978
  • Primary Citation of Related Structures:  
    4P0T

  • PubMed Abstract: 
  • Kinetochores, multi-subunit complexes that assemble at the interface with centromeres, bind spindle microtubules to ensure faithful delivery of chromosomes during cell division. The configuration and function of the kinetochore-centromere interface is poorly understood ...

    Kinetochores, multi-subunit complexes that assemble at the interface with centromeres, bind spindle microtubules to ensure faithful delivery of chromosomes during cell division. The configuration and function of the kinetochore-centromere interface is poorly understood. We report that a protein at this interface, CENP-M, is structurally and evolutionarily related to small GTPases but is incapable of GTP-binding and conformational switching. We show that CENP-M is crucially required for the assembly and stability of a tetramer also comprising CENP-I, CENP-H, and CENP-K, the HIKM complex, which we extensively characterize through a combination of structural, biochemical, and cell biological approaches. A point mutant affecting the CENP-M/CENP-I interaction hampers kinetochore assembly and chromosome alignment and prevents kinetochore recruitment of the CENP-T/W complex, questioning a role of CENP-T/W as founder of an independent axis of kinetochore assembly. Our studies identify a single pathway having CENP-C as founder, and CENP-H/I/K/M and CENP-T/W as CENP-C-dependent followers.DOI: http://dx.doi.org/10.7554/eLife.02978.001.


    Organizational Affiliation

    Department of Mechanistic Cell Biology, Max Planck Institute of Molecular Physiology, Dortmund, Germany Centre for Medical Biotechnology, Faculty of Biology, University of Duisburg-Essen, Essen, Germany andrea.musacchio@mpi-dortmund.mpg.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Centromere protein MA, B176Homo sapiensMutation(s): 0 
Gene Names: CENPMC22orf18ICEN39PANE1
Find proteins for Q9NSP4 (Homo sapiens)
Explore Q9NSP4 
Go to UniProtKB:  Q9NSP4
NIH Common Fund Data Resources
PHAROS:  Q9NSP4
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
C [auth B]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.49 Å
  • R-Value Free: 0.164 
  • R-Value Work: 0.124 
  • R-Value Observed: 0.127 
  • Space Group: P 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 104.03α = 90
b = 104.03β = 90
c = 33.56γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXphasing
Cootmodel building
xia2data reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-07-09
    Type: Initial release
  • Version 1.1: 2014-07-23
    Changes: Database references