6L97

Complex of DNA polymerase IV and L-DNA duplex

• PDB DOI: https://doi.org/10.2210/pdb6L97/pdb
• NAKB: 6L97

• Classification: DNA BINDING PROTEIN/DNA
• Organism(s): Saccharolobus solfataricus P2, synthetic construct
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-11-08 Released: 2020-07-08 
• Deposition Author(s): Chung, H.S., An, J., Hwang, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.36 Å
• R-Value Free: 0.266 
• R-Value Work: 0.230 
• R-Value Observed: 0.232 

Starting Model: experimental

Literature

The crystal structure of a natural DNA polymerase complexed with mirror DNA.

An, J., Choi, J., Hwang, D., Park, J., Pemble 4th, C.W., Duong, T.H.M., Kim, K.R., Ahn, H., Chung, H.S., Ahn, D.R.

(2020) Chem Commun (Camb) 56: 2186-2189

• PubMed: 31971182 
• DOI: https://doi.org/10.1039/c9cc09351f
• Primary Citation of Related Structures:  
  6L84, 6L97


• PubMed Abstract: 
  

  The intrinsic l-DNA binding properties of a natural DNA polymerase was discovered. The binding affinity of Dpo4 polymerase for l-DNA was comparable to that for d-DNA. The crystal structure of Dpo4/l-DNA complex revealed a dimer formed by the little finger domain that provides a binding site for l-DNA.

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Organizational Affiliation: 

Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea. [e-mail] and Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: isothermal titration calorimetry

Macromolecule Content

• Total Structure Weight: 92.42 kDa 
• Atom Count: 6,088 
• Modelled Residue Count: 700 
• Deposited Residue Count: 752 
• Unique protein chains: 1
• Unique nucleic acid chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA polymerase IV	A, B	360	Saccharolobus solfataricus P2	Mutation(s): 0  Gene Names: dbh, dpo4, SSO2448 EC: 2.7.7.7
UniProt
Find proteins for Q97W02 (Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)) Explore Q97W02  Go to UniProtKB:  Q97W02

Entity ID: 2
Molecule	Chains	Length	Organism	Image
DNA (5'-D(P*(0DG)P*(0DG)P*(0DA)P*(0DA)P*(0DT)P*(0DC)P*(0DC)P*(0DT)P*(0DT)P*(0DC)P*(0DC)P*(0DC)P*(0DC)P*(0DC))-3')	C [auth T]	18	synthetic construct

Entity ID: 3
Molecule	Chains	Length	Organism	Image
DNA (5'-D(*(0DG)P*(0DG)P*(0DG)P*(0DG)P*(0DG)P*(0DA)P*(0DA)P*(0DG)P*(0DG)P*(0DA)P*(0DT)P*(0DT)P*(0DC)P*(0DC))-3')	D [auth P]	14	synthetic construct

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.36 Å
• R-Value Free: 0.266 
• R-Value Work: 0.230 
• R-Value Observed: 0.232 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 85.861	α = 90
b = 54.969	β = 113.39
c = 96.545	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
PDB_EXTRACT	data extraction
HKL-2000	data reduction
PHENIX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-07-08 
Deposition Author(s): Chung, H.S., An, J., Hwang, D.

Revision History  

• Version 1.0: 2020-07-08
  Type: Initial release
  
• Version 1.1: 2023-11-22
  Changes: Data collection, Database references, Refinement description