4UX3

cohesin Smc3-HD:Scc1-N complex from yeast


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.329 
  • R-Value Work: 0.274 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Closing the Cohesin Ring: Structure and Function of its Smc3-Kleisin Interface.

Gligoris, T.G.Scheinost, J.C.Burmann, F.Petela, N.Chan, K.Uluocak, P.Beckouet, F.Gruber, S.Nasmyth, K.Lowe, J.

(2014) Science 346: 963

  • DOI: 10.1126/science.1256917

  • PubMed Abstract: 
  • Through their association with a kleisin subunit (Scc1), cohesin's Smc1 and Smc3 subunits are thought to form tripartite rings that mediate sister chromatid cohesion. Unlike the structure of Smc1/Smc3 and Smc1/Scc1 interfaces, that of Smc3/Scc1 is no ...

    Through their association with a kleisin subunit (Scc1), cohesin's Smc1 and Smc3 subunits are thought to form tripartite rings that mediate sister chromatid cohesion. Unlike the structure of Smc1/Smc3 and Smc1/Scc1 interfaces, that of Smc3/Scc1 is not known. Disconnection of this interface is thought to release cohesin from chromosomes in a process regulated by acetylation. We show here that the N-terminal domain of yeast Scc1 contains two α helices, forming a four-helix bundle with the coiled coil emerging from Smc3's adenosine triphosphatase head. Mutations affecting this interaction compromise cohesin's association with chromosomes. The interface is far from Smc3 residues, whose acetylation prevents cohesin's dissociation from chromosomes. Cohesin complexes holding chromatids together in vivo do indeed have the configuration of hetero-trimeric rings, and sister DNAs are entrapped within these.


    Organizational Affiliation

    Department of Biochemistry, University of Oxford, Oxford, OX1 3QU, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
STRUCTURAL MAINTENANCE OF CHROMOSOMES PROTEIN 3
A
543Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SMC3
Find proteins for P47037 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: SMC3
Go to UniProtKB:  P47037
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
MITOTIC CHROMOSOME DETERMINANT-RELATED PROTEIN
B
121Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: MCD1 (PDS3, RHC21, SCC1)
Find proteins for Q12158 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q12158
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
AGS
Query on AGS

Download SDF File 
Download CCD File 
A
PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER
ATP-GAMMA-S; ADENOSINE 5'-(3-THIOTRIPHOSPHATE); ADENOSINE 5'-(GAMMA-THIOTRIPHOSPHATE); ADENOSINE-5'-DIPHOSPHATE MONOTHIOPHOSPHATE
C10 H16 N5 O12 P3 S
NLTUCYMLOPLUHL-KQYNXXCUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.329 
  • R-Value Work: 0.274 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 73.151α = 90.00
b = 94.801β = 90.00
c = 284.768γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
PHASERphasing
REFMACrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-12-03
    Type: Initial release