1YT5

Crystal structure of NAD kinase from Thermotoga maritima


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of a NAD kinase from Thermotoga maritima at 2.3 A resolution.

Oganesyan, V.Huang, C.Adams, P.D.Jancarik, J.Yokota, H.A.Kim, R.Kim, S.H.

(2005) Acta Crystallogr.,Sect.F 61: 640-646

  • DOI: 10.1107/S1744309105019780

  • PubMed Abstract: 
  • NAD kinase is the only known enzyme that catalyzes the formation of NADP, a coenzyme involved in most anabolic reactions and in the antioxidant defense system. Despite its importance, very little is known regarding the mechanism of catalysis and only ...

    NAD kinase is the only known enzyme that catalyzes the formation of NADP, a coenzyme involved in most anabolic reactions and in the antioxidant defense system. Despite its importance, very little is known regarding the mechanism of catalysis and only recently have several NAD kinase structures been deposited in the PDB. Here, an independent investigation of the crystal structure of inorganic polyphosphate/ATP-NAD kinase, PPNK_THEMA, a protein from Thermotoga maritima, is reported at a resolution of 2.3 A. The crystal structure was solved using single-wavelength anomalous diffraction (SAD) data collected at the Se absorption-peak wavelength in a state in which no cofactors or substrates were bound. It revealed that the 258-amino-acid protein is folded into two distinct domains, similar to recently reported NAD kinases. The N-terminal alpha/beta-domain spans the first 100 amino acids and the last 30 amino acids of the polypeptide and has several topological matches in the PDB, whereas the other domain, which spans the middle 130 residues, adopts a unique beta-sandwich architecture and only appreciably matches the recently deposited PDB structures of NAD kinases.


    Organizational Affiliation

    Structural Genomics Center, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
inorganic polyphosphate/ATP-NAD kinase
A, B, C, D
258Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099)Mutation(s): 0 
Gene Names: NADK
EC: 2.7.1.23
Find proteins for Q9X255 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099))
Go to Gene View: NADK
Go to UniProtKB:  Q9X255
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B, C, D
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.213 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 131.448α = 90.00
b = 137.153β = 90.00
c = 58.253γ = 90.00
Software Package:
Software NamePurpose
SOLVEphasing
PHENIXmodel building
HKL-2000data collection
SCALEPACKdata scaling
PHENIXphasing
REFMACrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-04-05
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description