1VTK

THYMIDINE KINASE FROM HERPES SIMPLEX VIRUS TYPE 1 IN COMPLEX WITH ADP AND DEOXYTHYMIDINE-MONOPHOSPHATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.182 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The structures of thymidine kinase from herpes simplex virus type 1 in complex with substrates and a substrate analogue.

Wild, K.Bohner, T.Folkers, G.Schulz, G.E.

(1997) Protein Sci 6: 2097-2106

  • DOI: 10.1002/pro.5560061005
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Thymidine kinase from Herpes simplex virus type 1 (TK) was crystallized in an N-terminally truncated but fully active form. The structures of TK complexed with ADP at the ATP-site and deoxythymidine-5'-monophosphate (dTMP), deoxythymidine (dT), or id ...

    Thymidine kinase from Herpes simplex virus type 1 (TK) was crystallized in an N-terminally truncated but fully active form. The structures of TK complexed with ADP at the ATP-site and deoxythymidine-5'-monophosphate (dTMP), deoxythymidine (dT), or idoxuridine-5'-phosphate (5-iodo-dUMP) at the substrate-site were refined to 2.75 A, 2.8 A, and 3.0 A resolution, respectively. TK catalyzes the phosphorylation of dT resulting in an ester, and the phosphorylation of dTMP giving rise to an anhydride. The presented TK structures indicate that there are only small differences between these two modes of action. Glu83 serves as a general base in the ester reaction. Arg163 parks at an internal aspartate during ester formation and binds the alpha-phosphate of dTMP during anhydride formation. The bound deoxythymidine leaves a 35 A3 cavity at position 5 of the base and two sequestered water molecules at position 2. Cavity and water molecules reduce the substrate specificity to such an extent that TK can phosphorylate various substrate analogues useful in pharmaceutical applications. TK is structurally homologous to the well-known nucleoside monophosphate kinases but contains large additional peptide segments.


    Related Citations: 
    • The Three-Dimensional Structure of Thymidine Kinase from Herpes Simplex Virus Type 1
      Wild, K., Bohner, T., Aubry, A., Folkers, G., Schulz, G.E.
      (1995) FEBS Lett 368: 289
    • A Fast Method for Obtaining Highly Pure Recombinant Herpes Simplex Virus Type 1 Thymidine Kinase
      Fetzer, J., Michael, M., Bohner, T., Hofbauer, R., Folkers, G.
      (1994) Protein Expr Purif 5: 432

    Organizational Affiliation

    Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Freiburg im Breisgau, Germany.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
THYMIDINE KINASEA343Human alphaherpesvirus 1 strain FMutation(s): 0 
EC: 2.7.1.21
Find proteins for P03176 (Human herpesvirus 1 (strain 17))
Explore P03176 
Go to UniProtKB:  P03176
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download CCD File 
A
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
TMP
Query on TMP

Download CCD File 
A
THYMIDINE-5'-PHOSPHATE
C10 H15 N2 O8 P
GYOZYWVXFNDGLU-XLPZGREQSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.182 
  • Space Group: I 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.4α = 90
b = 83.4β = 90
c = 156.7γ = 90
Software Package:
Software NamePurpose
PHASESphasing
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 1997-04-01 
  • Released Date: 1997-10-22 
  • Deposition Author(s): Wild, K., Schulz, G.E.

Revision History 

  • Version 1.0: 1997-10-22
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance