5N2E

Structure of the E9 DNA polymerase from vaccinia virus

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.74 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

The vaccinia virus DNA polymerase structure provides insights into the mode of processivity factor binding.

Tarbouriech, N., Ducournau, C., Hutin, S., Mas, P.J., Man, P., Forest, E., Hart, D.J., Peyrefitte, C.N., Burmeister, W.P., Iseni, F.

(2017) Nat Commun 8: 1455-1455

  • DOI: 10.1038/s41467-017-01542-z
  • Primary Citation of Related Structures:  
    5N2E, 5N2H, 5N2G

  • PubMed Abstract: 

    • Vaccinia virus (VACV), the prototype member of the Poxviridae, replicates in the cytoplasm of an infected cell. The catalytic subunit of the DNA polymerase E9 binds the heterodimeric processivity factor A20/D4 to form the functional polymerase holoen ...

    Vaccinia virus (VACV), the prototype member of the Poxviridae, replicates in the cytoplasm of an infected cell. The catalytic subunit of the DNA polymerase E9 binds the heterodimeric processivity factor A20/D4 to form the functional polymerase holoenzyme. Here we present the crystal structure of full-length E9 at 2.7 Å resolution that permits identification of important poxvirus-specific structural insertions. One insertion in the palm domain interacts with C-terminal residues of A20 and thus serves as the processivity factor-binding site. This is in strong contrast to all other family B polymerases that bind their co-factors at the C terminus of the thumb domain. The VACV E9 structure also permits rationalization of polymerase inhibitor resistance mutations when compared with the closely related eukaryotic polymerase delta-DNA complex.

    Organizational Affiliation: 

    Unité de Virologie, Institut de Recherche Biomédicale des Armées, BP 73, 91223, Brétigny-sur-Orge Cedex, France. fredericiseni@gmail.com.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DNA polymeraseA1010Vaccinia virus CopenhagenMutation(s): 0 
Gene Names: POL, E9L
EC: 2.7.7.7 (PDB Primary Data), 3.1.11 (PDB Primary Data)
Find proteins for P20509 (Vaccinia virus (strain Copenhagen))
Explore P20509 
Go to UniProtKB:  P20509
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EPE
Query on EPE
Download CCD File 
A
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
C8 H18 N2 O4 S
JKMHFZQWWAIEOD-UHFFFAOYSA-N		 Ligand Interaction
MES
Query on MES
Download CCD File 
A
2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N		 Ligand Interaction
DTT
Query on DTT
Download CCD File 
A
2,3-DIHYDROXY-1,4-DITHIOBUTANE
C4 H10 O2 S2
VHJLVAABSRFDPM-IMJSIDKUSA-N		 Ligand Interaction
GOL
Query on GOL
Download CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.74 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 133.415α = 90
b = 133.415β = 90
c = 230.525γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
SOLVEphasing

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
French National Research AgencyFrance13-BSV8-0014

Revision History 

  • Version 1.0: 2017-11-29
    Type: Initial release
  • Version 1.1: 2018-10-17
    Changes: Data collection, Source and taxonomy, Structure summary