1MTL

Non-productive MUG-DNA complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Structure of a DNA base-excision product resembling a cisplatin inter-strand adduct.

Barrett, T.E.Savva, R.Barlow, T.Brown, T.Jiricny, J.Pearl, L.H.

(1998) Nat.Struct.Mol.Biol. 5: 697-701

  • DOI: 10.1038/1394

  • PubMed Abstract: 
  • Base-excision of a self-complementary oligonucleotide with central G:T mismatches by the G:T/U-specific mismatch DNA glycosylase (MUG), generates an unusual DNA structure which is remarkably similar in conformation to an interstrand DNA adduct of the ...

    Base-excision of a self-complementary oligonucleotide with central G:T mismatches by the G:T/U-specific mismatch DNA glycosylase (MUG), generates an unusual DNA structure which is remarkably similar in conformation to an interstrand DNA adduct of the anti-tumor drug cis-diamminedichloroplatinum. The abasic sugars generated by excision of the mismatched thymines are extruded from the double-helix, and the 'widowed' deoxyguanosines rotate so that their N7 and O6 groups protrude into the minor groove of the duplex and restack in an interleaved intercalative geometry, generating a kink in the helix axis.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University College London, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
G/U mismatch-specific DNA glycosylase
A, B
168Escherichia coli (strain K12)Gene Names: mug (ygjF)
EC: 3.2.2.28
Find proteins for P0A9H1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A9H1
Entity ID: 1
MoleculeChainsLengthOrganism
5'-D(*CP*GP*CP*GP*AP*GP*(AAB)P*TP*CP*GP*CP*G)-3'C,D12N/A
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
AAB
Query on AAB
C, D
DNA LINKINGC5 H11 O7 P

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.206 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 67.620α = 90.00
b = 84.860β = 90.00
c = 97.580γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
SCALAdata scaling
MOSFLMdata reduction
X-PLORrefinement
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-09-27
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2014-07-09
    Type: Non-polymer description
  • Version 1.4: 2017-10-11
    Type: Refinement description