1P6X

Crystal structure of EHV4-TK complexed with Thy and SO4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.192 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for the dual thymidine and thymidylate kinase activity of herpes thymidine kinases.

Gardberg, A.Shuvalova, L.Monnerjahn, C.Konrad, M.Lavie, A.

(2003) Structure 11: 1265-1277

  • DOI: 10.1016/j.str.2003.09.003
  • Primary Citation of Related Structures:  
    1P75, 1P73, 1P72, 1P6X, 1P7C

  • PubMed Abstract: 
  • Crystal structures of equine herpesvirus type-4 thymidine kinase (EHV4-TK) in complex with (i). thymidine and ADP, (ii). thymidine and SO(4) and the bisubstrate analogs, (iii). TP(4)A, and (iv). TP(5)A have been solved. Additionally, the structure of herpes simplex virus type-1 thymidine kinase (HSV1-TK) in complex with TP(5)A has been determined ...

    Crystal structures of equine herpesvirus type-4 thymidine kinase (EHV4-TK) in complex with (i). thymidine and ADP, (ii). thymidine and SO(4) and the bisubstrate analogs, (iii). TP(4)A, and (iv). TP(5)A have been solved. Additionally, the structure of herpes simplex virus type-1 thymidine kinase (HSV1-TK) in complex with TP(5)A has been determined. These are the first structures of nucleoside kinases revealing conformational transitions upon binding of bisubstrate analogs. The structural basis for the dual thymidine and thymidylate kinase activity of these TKs is elucidated. While the active sites of HSV1-TK and EHV4-TK resemble one another, notable differences are observed in the Lid regions and in the way the enzymes bind the base of the phosphoryl-acceptor. The latter difference could partly explain the higher activity of EHV4-TK toward the prodrug ganciclovir.


    Organizational Affiliation

    University of Illinois at Chicago, Department of Biochemistry and Molecular Biology, 1819 West Polk St, Chicago, IL 60612, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Thymidine kinaseA, B334Equid alphaherpesvirus 4Mutation(s): 0 
Gene Names: TK
EC: 2.7.1.21
Find proteins for P24425 (Equine herpesvirus 4 (strain 1942))
Explore P24425 
Go to UniProtKB:  P24425
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.192 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 111.65α = 90
b = 121.55β = 90
c = 118.83γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
XDSdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-11-04
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance