4P0T

Crystal structure of human centromere protein M


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.493 Å
  • R-Value Free: 0.164 
  • R-Value Work: 0.124 

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


  • 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 i ...

    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 Department of Experimental Oncology, European Institute of Oncology, Milan, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Centromere protein M
A, B
176Homo sapiensMutation(s): 0 
Gene Names: CENPM (C22orf18, ICEN39, PANE1)
Find proteins for Q9NSP4 (Homo sapiens)
Go to Gene View: CENPM
Go to UniProtKB:  Q9NSP4
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.493 Å
  • R-Value Free: 0.164 
  • R-Value Work: 0.124 
  • Space Group: P 3
Unit Cell:
Length (Å)Angle (°)
a = 104.030α = 90.00
b = 104.030β = 90.00
c = 33.560γ = 120.00
Software Package:
Software NamePurpose
PHENIXrefinement
Cootmodel building
PHENIXphasing
xia2data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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