1JX4

Crystal Structure of a Y-family DNA Polymerase in a Ternary Complex with DNA Substrates and an Incoming Nucleotide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of a Y-family DNA polymerase in action: a mechanism for error-prone and lesion-bypass replication.

Ling, H.Boudsocq, F.Woodgate, R.Yang, W.

(2001) Cell 107: 91-102

  • Primary Citation of Related Structures:  1JXL
  • Also Cited By: 1N48

  • PubMed Abstract: 
  • Sulfolobus solfataricus P2 DNA polymerase IV (Dpo4) is a DinB homolog that belongs to the recently described Y-family of DNA polymerases, which are best characterized by their low-fidelity synthesis on undamaged DNA templates and propensity to traver ...

    Sulfolobus solfataricus P2 DNA polymerase IV (Dpo4) is a DinB homolog that belongs to the recently described Y-family of DNA polymerases, which are best characterized by their low-fidelity synthesis on undamaged DNA templates and propensity to traverse normally replication-blocking lesions. Crystal structures of Dpo4 in ternary complexes with DNA and an incoming nucleotide, either correct or incorrect, have been solved at 1.7 A and 2.1 A resolution, respectively. Despite a conserved active site and a hand-like configuration similar to all known polymerases, Dpo4 makes limited and nonspecific contacts with the replicating base pair, thus relaxing base selection. Dpo4 is also captured in the crystal translocating two template bases to the active site at once, suggesting a possible mechanism for bypassing thymine dimers.


    Organizational Affiliation

    Laboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
DNA polymerase IV (family Y)
A
352Sulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)Gene Names: dbh (dpo4)
EC: 2.7.7.7
Find proteins for Q97W02 (Sulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2))
Go to UniProtKB:  Q97W02
Entity ID: 1
MoleculeChainsLengthOrganism
5'-D(*GP*GP*GP*GP*GP*AP*AP*GP*GP*AP*CP*TP*A)-3'P13N/A
Entity ID: 2
MoleculeChainsLengthOrganism
5'-D(*T*TP*CP*AP*TP*TP*AP*GP*TP*CP*CP*TP*TP*CP*CP*CP*CP*C)-3'T18N/A
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADI
Query on ADI

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A
2',3'-DIDEOXYADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O8 P2
QYFSANXOEHYVFG-NKWVEPMBSA-N
 Ligand Interaction
CA
Query on CA

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Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

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A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.213 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 97.090α = 90.00
b = 102.820β = 90.00
c = 52.300γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SOLVEphasing
CNSrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-10-05
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-11-16
    Type: Atomic model