2I2D

Crystal structure of LmNADK1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.22 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.207 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

NAD kinases use substrate-assisted catalysis for specific recognition of NAD.

Poncet-Montange, G.Assairi, L.Arold, S.Pochet, S.Labesse, G.

(2007) J.Biol.Chem. 282: 33925-33934

  • DOI: 10.1074/jbc.M701394200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Here we describe the crystal structures of the NAD kinase (LmNADK1) from Listeria monocytogenes in complex with its substrate NAD, its product NADP, or two synthesized NAD mimics. We identified one of the NAD mimics, di-adenosine diphosphate, as a ne ...

    Here we describe the crystal structures of the NAD kinase (LmNADK1) from Listeria monocytogenes in complex with its substrate NAD, its product NADP, or two synthesized NAD mimics. We identified one of the NAD mimics, di-adenosine diphosphate, as a new substrate for LmNADK1, whereas we showed that the closely related compound di-5'-thioadenosine is a novel non-natural inhibitor for this enzyme. These structures suggest a mechanism involving substrate-assisted catalysis. Indeed, sequence/structure comparison and directed mutagenesis have previously shown that NAD kinases (NADKs) and the distantly related 6-phosphofructokinases share the same catalytically important GGDGT motif. However, in this study we have shown that these enzymes use the central aspartate of this motif differently. Although this acidic residue chelates the catalytic Mg(2+) ion in 6-phosphofructokinases, it activates the phospho-acceptor (NAD) in NADKs. Sequence/structure comparisons suggest that the role of this aspartate would be conserved in NADKs and the related sphingosine and diacylglycerol kinases.


    Organizational Affiliation

    Atelier de Bio- et Chimie Informatique Structurale, Centre de Biochimie Structurale, UMR 5048/CNRS, Universit├ęs Montpellier 1 et 2, 29 rue de Navacelles, Montpellier, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Probable inorganic polyphosphate/ATP-NAD kinase 1
A
272Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e)Mutation(s): 0 
Gene Names: nadK1
EC: 2.7.1.23
Find proteins for Q8Y8D7 (Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e))
Go to UniProtKB:  Q8Y8D7
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CIT
Query on CIT

Download SDF File 
Download CCD File 
A
CITRIC ACID
C6 H8 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-N
 Ligand Interaction
A2D
Query on A2D

Download SDF File 
Download CCD File 
A
BIS{[(2R,3S,4R,5R)-5-(6-AMINO-9H-PURIN-9-YL)-3,4-DIHYDROXYTETRAHYDROFURAN-2-YL]METHYL} DIHYDROGEN DIPHOSPHATE
BIS(ADENOSINE)-5'-DIPHOSPHATE
C20 H26 N10 O13 P2
AKDJDUXNKGWGAZ-XPWFQUROSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.22 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.207 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 62.481α = 90.00
b = 75.851β = 90.00
c = 118.350γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
ADSCdata collection
SCALAdata scaling
MOLREPphasing
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-08-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance
  • Version 1.2: 2018-02-14
    Type: Experimental preparation