1LQG

ESCHERICHIA COLI URACIL-DNA GLYCOSYLASE COMPLEX WITH URACIL-DNA GLYCOSYLASE INHIBITOR PROTEIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Domain closure and action of uracil DNA glycosylase (UDG): structures of new crystal forms containing the Escherichia coli enzyme and a comparative study of the known structures involving UDG.

Saikrishnan, K.Bidya Sagar, M.Ravishankar, R.Roy, S.Purnapatre, K.Handa, P.Varshney, U.Vijayan, M.

(2002) Acta Crystallogr.,Sect.D 58: 1269-1276

  • Primary Citation of Related Structures:  1LQJ, 1LQM
  • Also Cited By: 2ZHX, 3A7N, 4WPK, 4WPL, 4WRU, 4WRV, 4WRW, 4WRX, 4WRY, 4WRZ, 4WS0, 4WS1, 4WS2, 4WS3, 4WS4, 4WS5, 4WS6, 4WS7, 4WS8

  • PubMed Abstract: 
  • The structures of a new crystal form of free Escherichia coli uracil DNA glycosylase (UDG), containing four molecules in the asymmetric unit, and two forms of its complex with the proteinaceous inhibitor Ugi, containing two and four crystallographica ...

    The structures of a new crystal form of free Escherichia coli uracil DNA glycosylase (UDG), containing four molecules in the asymmetric unit, and two forms of its complex with the proteinaceous inhibitor Ugi, containing two and four crystallographically independent complexes, have been determined. A comparison of these structures and the already known crystal structures containing UDG shows that the enzyme can be considered to be made up of two independently moving structural entities or domains. A detailed study of free and DNA-bound human enzyme strengthens this conclusion. The domains close upon binding to uracil-containing DNA, whereas they do not appear to do so upon binding to Ugi. The comparative study also shows that the mobility of the molecule involves the rigid-body movement of the domains superposed on flexibility within domains.


    Related Citations: 
    • Use of a coupled transcriptional system for consistent overexpression and purification of UDG-UGI complex and ugi from Escherichia coli
      Roy, S.,Purnapatre, K.,Handa, P.,Boyanapalli, M.,Varshney, U.
      (1998) Protein Expr.Purif. 13: 155
    • X-ray analysis of a complex of Escherichia coli uracil DNA glycosylase (ECUDG) with a proteinaceous inhibitor. The structure elucidation of a prokaryotic UDG
      Ravishankar, R.,Sagar, M.B.,Roy, S.,Purnapatre, K.,Handa, P.,Varshney, U.,Vijayan, M.
      (1998) Nucleic Acids Res. 26: 4880
    • Protein mimicry of DNA from crystal structures of the uracil-DNA glycosylase inhibitor protein and its complex with Escherichia coli uracil-DNA glycosylase.
      Putnam, C.D.,Shroyer, M.J.N.,Lundquist, A.J.,Mol, C.D.,Arvai, A.S.,Mosbaugh, D.W.,Tainer, J.A.
      (1999) J.Mol.Biol. 287: 331


    Organizational Affiliation

    Molecular Biophysics Unit, Indian Institute of Science, Bangalore 560012, India.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
URACIL-DNA GLYCOSYLASE
A, B
229Escherichia coli (strain K12)Gene Names: ung
EC: 3.2.2.27
Find proteins for P12295 (Escherichia coli (strain K12))
Go to UniProtKB:  P12295
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
URACIL-DNA GLYCOSYLASE INHIBITOR
C, D
84Bacillus phage PBS2Gene Names: UGI
Find proteins for P14739 (Bacillus phage PBS2)
Go to UniProtKB:  P14739
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.183 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 51.164α = 90.00
b = 89.902β = 90.00
c = 141.776γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-11-10
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance