5HOG

Crystal structure of the carboxy-terminal domain of yeast Ctf4 bound to Dna2.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.092 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.180 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Ctf4 Is a Hub in the Eukaryotic Replisome that Links Multiple CIP-Box Proteins to the CMG Helicase.

Villa, F.Simon, A.C.Ortiz Bazan, M.A.Kilkenny, M.L.Wirthensohn, D.Wightman, M.Matak-Vinkovic, D.Pellegrini, L.Labib, K.

(2016) Mol.Cell 63: 385-396

  • DOI: 10.1016/j.molcel.2016.06.009
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Replisome assembly at eukaryotic replication forks connects the DNA helicase to DNA polymerases and many other factors. The helicase binds the leading-strand polymerase directly, but is connected to the Pol α lagging-strand polymerase by the trimeric ...

    Replisome assembly at eukaryotic replication forks connects the DNA helicase to DNA polymerases and many other factors. The helicase binds the leading-strand polymerase directly, but is connected to the Pol α lagging-strand polymerase by the trimeric adaptor Ctf4. Here, we identify new Ctf4 partners in addition to Pol α and helicase, all of which contain a "Ctf4-interacting-peptide" or CIP-box. Crystallographic analysis classifies CIP-boxes into two related groups that target different sites on Ctf4. Mutations in the CIP-box motifs of the Dna2 nuclease or the rDNA-associated protein Tof2 do not perturb DNA synthesis genome-wide, but instead lead to a dramatic shortening of chromosome 12 that contains the large array of rDNA repeats. Our data reveal unexpected complexity of Ctf4 function, as a hub that connects multiple accessory factors to the replisome. Most strikingly, Ctf4-dependent recruitment of CIP-box proteins couples other processes to DNA synthesis, including rDNA copy-number regulation.


    Related Citations: 
    • A Ctf4 trimer couples the CMG helicase to DNA polymerase alpha in the eukaryotic replisome.
      Simon, A.C.,Zhou, J.C.,Perera, R.L.,van Deursen, F.,Evrin, C.,Ivanova, M.E.,Kilkenny, M.L.,Renault, L.,Kjaer, S.,Matak-Vinkovic, D.,Labib, K.,Costa, A.,Pellegrini, L.
      (2014) Nature 510: 293


    Organizational Affiliation

    MRC Protein Phosphorylation and Ubiquitylation Unit, Sir James Black Centre, School of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA polymerase alpha-binding protein
A, B, C
478Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: CTF4 (CHL15, POB1)
Find proteins for Q01454 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q01454
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Dna2p
D, E
17Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: DNA2
Find proteins for P38859 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: DNA2
Go to UniProtKB:  P38859
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.092 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.180 
  • Space Group: P 2 21 21
Unit Cell:
Length (Å)Angle (°)
a = 88.677α = 90.00
b = 99.551β = 90.00
c = 218.373γ = 90.00
Software Package:
Software NamePurpose
PHENIXphasing
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom104641/Z/14/Z
Gates Cambridge PhD programUnited Kingdom--

Revision History 

  • Version 1.0: 2016-06-22
    Type: Initial release
  • Version 1.1: 2016-07-20
    Type: Database references
  • Version 1.2: 2016-08-17
    Type: Database references