4CP5

ndpK in complex with (Rp)-SPMPApp


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.32 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.199 

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
  • Primary Citation of Related Structures:  

  • 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 "Viral Replicases: Structure, Mechanism and Drug-Design", Université Aix-Marseille, Parc scientifique de Luminy, 163 av. de Luminy, 13288 Marseille Cedex 9, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NUCLEOSIDE DIPHOSPHATE KINASE, CYTOSOLIC
A, B, C, D, E, F
155Dictyostelium discoideumMutation(s): 1 
Gene Names: ndkC-1, ndkC-2 (gip17, ndkB, gip17, ndkB)
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
EOI
Query on EOI

Download SDF File 
Download CCD File 
A, B, C, D, E, F
[[(2R)-1-(6-aminopurin-9-yl)propan-2-yl]oxymethyl-sulfanyl-phosphoryl] phosphono hydrogen phosphate
C9 H16 N5 O9 P3 S
BMDSOWJDBWVWQG-FMWWOLKHSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
EOIKd: 452000 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.32 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.199 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 70.008α = 90.00
b = 105.790β = 117.23
c = 70.576γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
SCALAdata scaling
PHASERphasing
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-02-11
    Type: Initial release
  • Version 1.1: 2015-03-25
    Type: Database references
  • Version 1.2: 2015-04-22
    Type: Database references