3IF8

Crystal Structure of ZWILCH, a member of the RZZ kinetochore complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.231 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural analysis of the RZZ complex reveals common ancestry with multisubunit vesicle tethering machinery.

Civril, F.Wehenkel, A.Giorgi, F.M.Santaguida, S.Di Fonzo, A.Grigorean, G.Ciccarelli, F.D.Musacchio, A.

(2010) Structure 18: 616-626

  • DOI: 10.1016/j.str.2010.02.014
  • Primary Citation of Related Structures:  
    3IF8

  • PubMed Abstract: 
  • The RZZ complex recruits dynein to kinetochores. We investigated structure, topology, and interactions of the RZZ subunits (ROD, ZWILCH, and ZW10) in vitro, in vivo, and in silico. We identify neuroblastoma-amplified gene (NAG), a ZW10 binder, as a ROD homolog ...

    The RZZ complex recruits dynein to kinetochores. We investigated structure, topology, and interactions of the RZZ subunits (ROD, ZWILCH, and ZW10) in vitro, in vivo, and in silico. We identify neuroblastoma-amplified gene (NAG), a ZW10 binder, as a ROD homolog. ROD and NAG contain an N-terminal beta propeller followed by an alpha solenoid, which is the architecture of certain nucleoporins and vesicle coat subunits, suggesting a distant evolutionary relationship. ZW10 binding to ROD and NAG is mutually exclusive. The resulting ZW10 complexes (RZZ and NRZ) respectively contain ZWILCH and RINT1 as additional subunits. The X-ray structure of ZWILCH, the first for an RZZ subunit, reveals a novel fold distinct from RINT1's. The evolutionarily conserved NRZ likely acts as a tethering complex for retrograde trafficking of COPI vesicles from the Golgi to the endoplasmic reticulum. The RZZ, limited to metazoans, probably evolved from the NRZ, exploiting the dynein-binding capacity of ZW10 to direct dynein to kinetochores.


    Organizational Affiliation

    Department of Experimental Oncology, European Institute of Oncology, Via Adamello 16, I-20139 Milan, Italy.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein zwilch homologA339Homo sapiensMutation(s): 0 
Gene Names: ZWILCH
Find proteins for Q9H900 (Homo sapiens)
Explore Q9H900 
Go to UniProtKB:  Q9H900
NIH Common Fund Data Resources
PHAROS:  Q9H900
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Protein zwilch homologB257Homo sapiensMutation(s): 0 
Gene Names: ZWILCH
Find proteins for Q9H900 (Homo sapiens)
Explore Q9H900 
Go to UniProtKB:  Q9H900
NIH Common Fund Data Resources
PHAROS:  Q9H900
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.231 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.6α = 90
b = 86.6β = 90
c = 166.89γ = 120
Software Package:
Software NamePurpose
XSCALEdata scaling
SHARPphasing
SOLOMONphasing
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-06-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance