4C6A

High Resolution Structure of the Nucleoside diphosphate kinase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.172 
  • R-Value Work: 0.163 
  • R-Value Observed: 0.164 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Enzymatic Synthesis of Acyclic Nucleoside Thiophosphonate Diphosphates: Effect of the Alpha-Phosphorus Configuration on HIV-1 RT Activity.

Priet, S.Roux, L.Saez-Ayala, M.Ferron, F.Canard, B.Alvarez, K.

(2015) Antiviral Res 117: 122

  • DOI: 10.1016/j.antiviral.2015.03.003
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The acyclic nucleosides thiophosphonates (9-[2-(thiophosphonomethoxy)ethyl]adenine (S-PMEA) and (R)-9-[2-(thiophosphonomethoxy)propyl]adenine (S-PMPA), exhibit antiviral activity against HIV-1, -2 and HBV. Their diphosphate forms S-PMEApp and S-PMPAp ...

    The acyclic nucleosides thiophosphonates (9-[2-(thiophosphonomethoxy)ethyl]adenine (S-PMEA) and (R)-9-[2-(thiophosphonomethoxy)propyl]adenine (S-PMPA), exhibit antiviral activity against HIV-1, -2 and HBV. Their diphosphate forms S-PMEApp and S-PMPApp, synthesized as stereoisomeric mixture, are potent inhibitors of wild-type (WT) HIV-1 RT. Understanding HIV-1 RT stereoselectivity, however, awaits resolution of the diphosphate forms into defined stereoisomers. To this aim, thiophosphonate monophosphates S-PMEAp and S-PMPAp were synthesized and used in a stereocontrolled enzyme-catalyzed phosphoryl transfer reaction involving either nucleoside diphosphate kinase (NDPK) or creatine kinase (CK) to obtain thiophosphonate diphosphates as separated isomers. We then quantified substrate preference of recombinant WT HIV-1 RT toward pure stereoisomers using in vitro steady-state kinetic analyses. The crystal structure of a complex between Dictyostelium NDPK and S-PMPApp at 2.32Å allowed to determine the absolute configuration at the α-phosphorus atom in relation to the stereo-preference of studied enzymes. The RP isomer of S-PMPApp and S-PMEApp are the preferred substrate over SP for both NDPK and HIV-1 RT.


    Organizational Affiliation

    Laboratoire d'Architecture et Fonction des Macromolécules Biologiques, UMR CNRS 7257, Team "Antiviral Medicinal Chemistry", Université Aix-Marseille, Parc scientifique de Luminy, 163 av. de Luminy, 13288 Marseille Cedex 9, France. Electronic address: Karine.Alvarez@afmb.univ-mrs.fr.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NUCLEOSIDE DIPHOSPHATE KINASE, CYTOSOLIC
A
154Dictyostelium discoideumMutation(s): 1 
Gene Names: ndkC-1gip17ndkBDDB_G0273069ndkC-2DDB_G0273805
EC: 2.7.4.6
Find proteins for P22887 (Dictyostelium discoideum)
Go to UniProtKB:  P22887
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PEG
Query on PEG

Download CCD File 
A
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.172 
  • R-Value Work: 0.163 
  • R-Value Observed: 0.164 
  • Space Group: P 63 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.7α = 90
b = 71.7β = 90
c = 106.78γ = 120
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-20
    Type: Initial release
  • Version 1.1: 2015-03-25
    Changes: Database references
  • Version 1.2: 2015-04-22
    Changes: Database references