3OA7

Structure of the C-terminal domain of Cnm67, a core component of the spindle pole body of Saccharomyces cerevisiae


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.238 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure-function analysis of the C-terminal domain of CNM67, a core component of the Saccharomyces cerevisiae spindle pole body.

Klenchin, V.A.Frye, J.J.Jones, M.H.Winey, M.Rayment, I.

(2011) J.Biol.Chem. 286: 18240-18250

  • DOI: 10.1074/jbc.M111.227371

  • PubMed Abstract: 
  • The spindle pole body of the budding yeast Saccharomyces cerevisiae has served as a model system for understanding microtubule organizing centers, yet very little is known about the molecular structure of its components. We report here the structure ...

    The spindle pole body of the budding yeast Saccharomyces cerevisiae has served as a model system for understanding microtubule organizing centers, yet very little is known about the molecular structure of its components. We report here the structure of the C-terminal domain of the core component Cnm67 at 2.3 Å resolution. The structure determination was aided by a novel approach to crystallization of proteins containing coiled-coils that utilizes globular domains to stabilize the coiled-coils. This enhances their solubility in Escherichia coli and improves their crystallization. The Cnm67 C-terminal domain (residues Asn-429-Lys-581) exhibits a previously unseen dimeric, interdigitated, all α-helical fold. In vivo studies demonstrate that this domain alone is able to localize to the spindle pole body. In addition, the structure reveals a large functionally indispensable positively charged surface patch that is implicated in spindle pole body localization. Finally, the C-terminal eight residues are disordered but are critical for protein folding and structural stability.


    Organizational Affiliation

    Department of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Head morphogenesis protein, Chaotic nuclear migration protein 67 fusion protein
A
206Bacillus phage phi29Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
This entity is chimeric
Mutation(s): 0 
Gene Names: 7, CNM67
Find proteins for P13848 (Bacillus phage phi29)
Go to UniProtKB:  P13848
Find proteins for P53865 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P53865
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.238 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 58.760α = 90.00
b = 198.563β = 90.00
c = 53.232γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
SOLVEphasing
REFMACrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-03-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2016-06-22
    Type: Database references
  • Version 1.3: 2017-08-16
    Type: Refinement description, Source and taxonomy, Structure summary