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 

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

  • 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 R ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein zwilch homolog
A
339Homo sapiensMutation(s): 0 
Gene Names: ZWILCH
Find proteins for Q9H900 (Homo sapiens)
Go to Gene View: ZWILCH
Go to UniProtKB:  Q9H900
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Protein zwilch homolog
B
257Homo sapiensMutation(s): 0 
Gene Names: ZWILCH
Find proteins for Q9H900 (Homo sapiens)
Go to Gene View: ZWILCH
Go to UniProtKB:  Q9H900
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.229 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 86.600α = 90.00
b = 86.600β = 90.00
c = 166.890γ = 120.00
Software Package:
Software NamePurpose
XSCALEdata scaling
SHARPphasing
SOLOMONphasing
XDSdata scaling
PDB_EXTRACTdata extraction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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