3OH2

Protein structure of USP from L. major bound to URIDINE-5'-DIPHOSPHATE-GALACTOSE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.14 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.168 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural basis for the broad substrate range of the UDP-sugar pyrophosphorylase from Leishmania major.

Dickmanns, A.Damerow, S.Neumann, P.Schulz, E.C.Lamerz, A.C.Routier, F.H.Ficner, R.

(2011) J.Mol.Biol. 405: 461-478

  • DOI: 10.1016/j.jmb.2010.10.057
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Nucleotide sugars and the enzymes that are responsible for their synthesis are indispensable for the production of complex carbohydrates and, thus, for elaboration of a protective cellular coat for many organisms such as the protozoan parasite Leishm ...

    Nucleotide sugars and the enzymes that are responsible for their synthesis are indispensable for the production of complex carbohydrates and, thus, for elaboration of a protective cellular coat for many organisms such as the protozoan parasite Leishmania. These activated sugars are synthesized de novo or derived from salvaged monosaccharides. In addition to UDP-glucose (UDP-Glc) pyrophosphorylase, which catalyzes the formation of UDP-Glc from substrates UTP and glucose-1-phosphate, Leishmania major and plants express a UDP-sugar pyrophosphorylase (USP) that exhibits broad substrate specificity in vitro. The enzyme, likely involved in monosaccharide salvage, preferentially generates UDP-Glc and UDP-galactose, but it may also activate other hexose- or pentose-1-phosphates such as galacturonic acid-1-phosphate or arabinose-1-phosphate. In order to gain insight into structural features governing the differences in substrate specificity, we determined the crystal structure of the L. major USP in the APO-, UTP-, and UDP-sugar-bound conformations. The overall tripartite structure of USP exhibits a significant structural homology to other nucleotidyldiphosphate-glucose pyrophosphorylases. The obtained USP structures reveal the structural rearrangements occurring during the stepwise binding process of the substrates. Moreover, the different product complexes explain the broad substrate specificity of USP, which is enabled by structural changes in the sugar binding region of the active site.


    Organizational Affiliation

    Institut für Mikrobiologie und Genetik & GZMB, Georg-August-Universität Göttingen, Justus-von-Liebig-Weg 11, D-37077 Göttingen, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
UDP-sugar pyrophosphorylase
A
641Leishmania majorMutation(s): 0 
Gene Names: USP
Find proteins for D3G6S4 (Leishmania major)
Go to UniProtKB:  D3G6S4
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDU
Query on GDU

Download SDF File 
Download CCD File 
A
GALACTOSE-URIDINE-5'-DIPHOSPHATE
UDP-D-GALACTOPYRANOSE
C15 H24 N2 O17 P2
HSCJRCZFDFQWRP-ABVWGUQPSA-N
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.14 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.168 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 107.433α = 90.00
b = 121.910β = 105.98
c = 61.407γ = 90.00
Software Package:
Software NamePurpose
MAR345dtbdata collection
CNSphasing
SCALEPACKdata scaling
HKL-2000data reduction
PDB_EXTRACTdata extraction
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-11-17
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance