4I9A

Crystal Structure of Sus scrofa Quinolinate Phosphoribosyltransferase in Complex with Nicotinate Mononucleotide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.096 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of Sus scrofa quinolinate phosphoribosyltransferase in complex with nicotinate mononucleotide

Youn, H.-S.Kim, M.-K.Kang, G.B.Kim, T.G.Lee, J.-G.An, J.Y.Park, K.R.Lee, Y.Kang, J.Y.Song, H.E.Park, I.Cho, C.Fukuoka, S.Eom, S.H.

(2013) Plos One 8: e62027-e62027

  • DOI: 10.1371/journal.pone.0062027

  • PubMed Abstract: 
  • We have determined the crystal structure of porcine quinolinate phosphoribosyltransferase (QAPRTase) in complex with nicotinate mononucleotide (NAMN), which is the first crystal structure of a mammalian QAPRTase with its reaction product. The structu ...

    We have determined the crystal structure of porcine quinolinate phosphoribosyltransferase (QAPRTase) in complex with nicotinate mononucleotide (NAMN), which is the first crystal structure of a mammalian QAPRTase with its reaction product. The structure was determined from protein obtained from the porcine kidney. Because the full protein sequence of porcine QAPRTase was not available in either protein or nucleotide databases, cDNA was synthesized using reverse transcriptase-polymerase chain reaction to determine the porcine QAPRTase amino acid sequence. The crystal structure revealed that porcine QAPRTases have a hexameric structure that is similar to other eukaryotic QAPRTases, such as the human and yeast enzymes. However, the interaction between NAMN and porcine QAPRTase was different from the interaction found in prokaryotic enzymes, such as those of Helicobacter pylori and Mycobacterium tuberculosis. The crystal structure of porcine QAPRTase in complex with NAMN provides a structural framework for understanding the unique properties of the mammalian QAPRTase active site and designing new antibiotics that are selective for the QAPRTases of pathogenic bacteria, such as H. pylori and M. tuberculosis.


    Organizational Affiliation

    School of Life Sciences, Gwangju Institute of Science & Technology, Gwangju, Republic of Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
quinolinate phosphoribosyltransferase
A, B
288Sus scrofaMutation(s): 0 
Gene Names: QPRT
EC: 2.4.2.19
Find proteins for I3LK75 (Sus scrofa)
Go to Gene View: QPRT
Go to UniProtKB:  I3LK75
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NCN
Query on NCN

Download SDF File 
Download CCD File 
A, B
NICOTINATE MONONUCLEOTIDE
NAMN
C11 H14 N O9 P
JOUIQRNQJGXQDC-ZYUZMQFOSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.096 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.215 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 119.106α = 90.00
b = 119.106β = 90.00
c = 93.737γ = 120.00
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-05-01
    Type: Initial release
  • Version 1.1: 2013-08-07
    Type: Database references