5LCL

STRUCTURE OF the RAD14 DNA-binding domain IN COMPLEX WITH C8-aminofluorene- GUANINE CONTAINING DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Insights into the Recognition of N(2) -Aryl- and C8-Aryl DNA Lesions by the Repair Protein XPA/Rad14.

Ebert, C.Simon, N.Schneider, S.Carell, T.

(2017) Chembiochem 18: 1379-1382

  • DOI: 10.1002/cbic.201700169
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Aromatic amines are strongly carcinogenic. They are activated in the liver to give reactive nitrenium ions that react with nucleobases within the DNA duplex. The reaction occurs predominantly at the C8 position of the dG base, thereby giving C8-acety ...

    Aromatic amines are strongly carcinogenic. They are activated in the liver to give reactive nitrenium ions that react with nucleobases within the DNA duplex. The reaction occurs predominantly at the C8 position of the dG base, thereby giving C8-acetyl-aryl- or C8-aryl-dG adducts in an electrophilic aromatic substitution reaction. Alternatively, reaction with the exocyclic 2-NH2 group is observed. Although the C8 adducts retain base-pairing properties, base pairing is strongly compromised in the case of the N2 adducts. Here we show crystal structures of two DNA lesions, N2 -acetylnaphthyl-dG and C8-fluorenyl-dG, within a DNA duplex recognized by the repair protein Rad14. The structures confirm that two molecules of the repair protein recognize the lesion and induce a 72 or 78° kink at the site of the damage. Importantly, the same overall kinked structure is induced by binding of the repair proteins, although the structurally different lesions result in distinct stacking interactions of the lesions within the duplex. The results suggest that the repair protein XPA/Rad14 is a sensor that recognizes flexibility. The protein converts the information that structurally different lesions are present in the duplex into a unifying sharply kinked recognition motif.


    Organizational Affiliation

    Center for Integrated Protein Science at the Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377, München, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA repair protein RAD14
A
119Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RAD14
Find proteins for P28519 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P28519
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
DNA repair protein RAD14
B
371Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RAD14
Find proteins for P28519 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P28519
Entity ID: 3
MoleculeChainsLengthOrganism
GCTCTAC(8AF)TCATCAC15Saccharomyces
Entity ID: 4
MoleculeChainsLengthOrganism
DNA (5'-D(*GP*TP*GP*AP*TP*GP*AP*CP*GP*TP*AP*GP*AP*G)-3')D15Saccharomyces
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
8AF
Query on 8AF
C
NON-POLYMERC23 H23 N6 O6 P

--

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.217 
  • Space Group: P 41
Unit Cell:
Length (Å)Angle (°)
a = 53.205α = 90.00
b = 53.205β = 90.00
c = 130.965γ = 90.00
Software Package:
Software NamePurpose
REFMACphasing
XDSdata scaling
XDSdata reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermany--

Revision History 

  • Version 1.0: 2017-05-10
    Type: Initial release
  • Version 1.1: 2017-06-07
    Type: Database references
  • Version 1.2: 2017-07-26
    Type: Database references