5W94

Crystal structure of Scc4 in complex with Scc2n and Ctf19n


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.193 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The Kinetochore Receptor for the Cohesin Loading Complex.

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

(2017) Cell 171: 72-84.e13

  • DOI: 10.1016/j.cell.2017.08.017

  • PubMed Abstract: 
  • The ring-shaped cohesin complex brings together distant DNA domains to maintain, express, and segregate the genome. Establishing specific chromosomal linkages depends on cohesin recruitment to defined loci. One such locus is the budding yeast centrom ...

    The ring-shaped cohesin complex brings together distant DNA domains to maintain, express, and segregate the genome. Establishing specific chromosomal linkages depends on cohesin recruitment to defined loci. One such locus is the budding yeast centromere, which is a paradigm for targeted cohesin loading. The kinetochore, a multiprotein complex that connects centromeres to microtubules, drives the recruitment of high levels of cohesin to link sister chromatids together. We have exploited this system to determine the mechanism of specific cohesin recruitment. We show that phosphorylation of the Ctf19 kinetochore protein by a conserved kinase, DDK, provides a binding site for the Scc2/4 cohesin loading complex, thereby directing cohesin loading to centromeres. A similar mechanism targets cohesin to chromosomes in vertebrates. These findings represent a complete molecular description of targeted cohesin loading, a phenomenon with wide-ranging importance in chromosome segregation and, in multicellular organisms, transcription regulation.


    Organizational Affiliation

    Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MAU2 chromatid cohesion factor homolog
A, C
624Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SCC4
Find proteins for P40090 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P40090
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Sister chromatid cohesion protein 2
B, D
184Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SCC2
Find proteins for Q04002 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q04002
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Ctf19n
E, H
6Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: CTF19 (MCM18)
Find proteins for Q02732 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q02732
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
E, H
L-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO
E, H
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.193 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.209 
  • Space Group: P 62
Unit Cell:
Length (Å)Angle (°)
a = 172.969α = 90.00
b = 172.969β = 90.00
c = 145.095γ = 120.00
Software Package:
Software NamePurpose
PHENIXphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Howard Hughes Medical InstituteUnited States--

Revision History 

  • Version 1.0: 2017-10-04
    Type: Initial release