4XDN

Crystal structure of Scc4 in complex with Scc2n


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.08 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.186 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural evidence for Scc4-dependent localization of cohesin loading.

Hinshaw, S.M.Makrantoni, V.Kerr, A.Marston, A.L.Harrison, S.C.

(2015) Elife 4: e06057-e06057

  • DOI: https://doi.org/10.7554/eLife.06057
  • Primary Citation of Related Structures:  
    4XDN

  • PubMed Abstract: 

    The cohesin ring holds newly replicated sister chromatids together until their separation at anaphase. Initiation of sister chromatid cohesion depends on a separate complex, Scc2(NIPBL)/Scc4(Mau2) (Scc2/4), which loads cohesin onto DNA and determines its localization across the genome. Proper cohesin loading is essential for cell division, and partial defects cause chromosome missegregation and aberrant transcriptional regulation, leading to severe developmental defects in multicellular organisms. We present here a crystal structure showing the interaction between Scc2 and Scc4. Scc4 is a TPR array that envelops an extended Scc2 peptide. Using budding yeast, we demonstrate that a conserved patch on the surface of Scc4 is required to recruit Scc2/4 to centromeres and to build pericentromeric cohesion. These findings reveal the role of Scc4 in determining the localization of cohesin loading and establish a molecular basis for Scc2/4 recruitment to centromeres.


  • Organizational Affiliation

    Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
MAU2 chromatid cohesion factor homolog643Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: SCC4
UniProt
Find proteins for P40090 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P40090 
Go to UniProtKB:  P40090
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP40090
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Sister chromatid cohesion protein 2200Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: SCC2
UniProt
Find proteins for Q04002 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q04002 
Go to UniProtKB:  Q04002
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ04002
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.08 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.186 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.579α = 90
b = 177.279β = 111.11
c = 51.343γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
SHELXDEphasing
HKL-2000data reduction
PDB_EXTRACTdata extraction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (NSF, United States)United States--
Howard Hughes Medical Institute (HHMI)United States--

Revision History  (Full details and data files)

  • Version 1.0: 2015-06-17
    Type: Initial release
  • Version 1.1: 2015-08-26
    Changes: Database references
  • Version 1.2: 2017-09-27
    Changes: Author supporting evidence, Derived calculations
  • Version 1.3: 2019-11-20
    Changes: Author supporting evidence
  • Version 1.4: 2024-02-28
    Changes: Data collection, Database references