3RDP

Crystal structure of thymidine kinase from herpes simplex virus type 1 in complex with N-METHYL-FHBT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.202 

Starting Model: experimental
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This is version 1.2 of the entry. See complete history


Literature

Synthesis, crystal structure, and in vitro biological evaluation of C-6 pyrimidine derivatives: new lead structures for monitoring gene expression in vivo.

Martic, M.Pernot, L.Westermaier, Y.Perozzo, R.Kraljevic, T.G.Kristafor, S.Raic-Malic, S.Scapozza, L.Ametamey, S.

(2011) Nucleosides Nucleotides Nucleic Acids 30: 293-315

  • DOI: https://doi.org/10.1080/15257770.2011.581258
  • Primary Citation of Related Structures:  
    3F0T, 3RDP

  • PubMed Abstract: 

    Novel C-6 substituted pyrimidine derivatives are good substrates of herpes simplex virus type 1 thymidine kinase (HSV1-TK). Enzyme kinetic experiments showed that our lead compound, N-methyl DHBT (N-methyl-6-(1,3-dihydroxyisobutyl) thymine; N-Me DHBT), is phosphorylated at a similar rate compared to "gold standard" 9-[4-fluoro-3-(hydroxymethyl)butyl]guanine, FHBG, (K(m) = 10 ± 0.3 μM; k(cat) = 0.036 ± 0.015 sec(-1)). Additionally, it does not show cytotoxic properties on B16F1 cells up to a concentration of 10 mM. The x-ray analysis of the crystal structures of HSV1-TK with N-Me DHBT and of HSV1-TK with the fluorinated derivative N-Me FHBT confirmed the binding mode predicted by docking studies and their substrate characteristics. Moreover, the crystal structure of HSV1-TK with N-Me DHBT revealed an additional water-mediated H-bond interesting for the design of further analogues.


  • Organizational Affiliation

    Center for Pharmaceutical Science of ETH, PSI and USZ, ETH Zurich, Zurich, Switzerland.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Thymidine kinase
A, B
331Human alphaherpesvirus 1 strain 17Mutation(s): 0 
Gene Names: TKUL23
EC: 2.7.1.21
UniProt
Find proteins for P0DTH5 (Human herpesvirus 1 (strain 17))
Explore P0DTH5 
Go to UniProtKB:  P0DTH5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0DTH5
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.202 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 114.187α = 90
b = 118.283β = 90
c = 108.871γ = 90
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-08-03
    Type: Initial release
  • Version 1.1: 2013-10-02
    Changes: Structure summary
  • Version 1.2: 2023-11-01
    Changes: Data collection, Database references, Derived calculations, Refinement description