4FJO

Structure of the Rev1 CTD-Rev3/7-Pol kappa RIR complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.718 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural basis of Rev1-mediated assembly of a quaternary vertebrate translesion polymerase complex consisting of Rev1, heterodimeric Pol zeta and Pol kappa

Wojtaszek, J.Lee, C.J.D'Souza, S.Minesinger, B.Kim, H.D'Andrea, A.D.Walker, G.C.Zhou, P.

(2012) J.Biol.Chem. 287: 33836-33846

  • DOI: 10.1074/jbc.M112.394841

  • PubMed Abstract: 
  • DNA synthesis across lesions during genomic replication requires concerted actions of specialized DNA polymerases in a potentially mutagenic process known as translesion synthesis. Current models suggest that translesion synthesis in mammalian cells ...

    DNA synthesis across lesions during genomic replication requires concerted actions of specialized DNA polymerases in a potentially mutagenic process known as translesion synthesis. Current models suggest that translesion synthesis in mammalian cells is achieved in two sequential steps, with a Y-family DNA polymerase (κ, η, ι, or Rev1) inserting a nucleotide opposite the lesion and with the heterodimeric B-family polymerase ζ, consisting of the catalytic Rev3 subunit and the accessory Rev7 subunit, replacing the insertion polymerase to carry out primer extension past the lesion. Effective translesion synthesis in vertebrates requires the scaffolding function of the C-terminal domain (CTD) of Rev1 that interacts with the Rev1-interacting region of polymerases κ, η, and ι and with the Rev7 subunit of polymerase ζ. We report the purification and structure determination of a quaternary translesion polymerase complex consisting of the Rev1 CTD, the heterodimeric Pol ζ complex, and the Pol κ Rev1-interacting region. Yeast two-hybrid assays were employed to identify important interface residues of the translesion polymerase complex. The structural elucidation of such a quaternary translesion polymerase complex encompassing both insertion and extension polymerases bridged by the Rev1 CTD provides the first molecular explanation of the essential scaffolding function of Rev1 and highlights the Rev1 CTD as a promising target for developing novel cancer therapeutics to suppress translesion synthesis. Our studies support the notion that vertebrate insertion and extension polymerases could structurally cooperate within a megatranslesion polymerase complex (translesionsome) nucleated by Rev1 to achieve efficient lesion bypass without incurring an additional switching mechanism.


    Organizational Affiliation

    Department of Biochemistry, Duke University, Medical Center, Durham, North Carolina 27710, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA repair protein REV1
A
97Mus musculusMutation(s): 0 
Gene Names: Rev1 (Rev1l)
EC: 2.7.7.-
Find proteins for Q920Q2 (Mus musculus)
Go to UniProtKB:  Q920Q2
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
DNA polymerase kappa
B
10Mus musculusMutation(s): 0 
Gene Names: Polk (Dinb1)
EC: 2.7.7.7
Find proteins for Q9QUG2 (Mus musculus)
Go to UniProtKB:  Q9QUG2
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Mitotic spindle assembly checkpoint protein MAD2B
C
210Mus musculusMutation(s): 1 
Gene Names: Mad2l2 (Mad2b, Rev7)
Find proteins for Q9D752 (Mus musculus)
Go to UniProtKB:  Q9D752
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
DNA polymerase zeta catalytic subunit
D
30Mus musculusMutation(s): 0 
Gene Names: Rev3l (Polz, Sez4)
EC: 2.7.7.7
Find proteins for Q61493 (Mus musculus)
Go to UniProtKB:  Q61493
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
C
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.718 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.201 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 145.727α = 90.00
b = 145.727β = 90.00
c = 70.799γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
PDB_EXTRACTdata extraction
SCALEPACKdata scaling
PHENIXrefinement
PHASERphasing
SERGUIdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-08-08
    Type: Initial release
  • Version 1.1: 2013-06-19
    Type: Database references
  • Version 1.2: 2017-11-15
    Type: Refinement description
  • Version 1.3: 2018-01-24
    Type: Structure summary