1EPX

CRYSTAL STRUCTURE ANALYSIS OF ALDOLASE FROM L. MEXICANA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.161 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structures of type 2 peroxisomal targeting signals in two trypanosomatid aldolases.

Chudzik, D.M.Michels, P.A.de Walque, S.Hol, W.G.

(2000) J.Mol.Biol. 300: 697-707

  • DOI: 10.1006/jmbi.2000.3910
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Trypanosomatids, unicellular organisms responsible for several global diseases, contain unique organelles called glycosomes in which the first seven glycolytic enzymes are sequestered. We report the crystal structures of glycosomal fructose-1,6-bisph ...

    Trypanosomatids, unicellular organisms responsible for several global diseases, contain unique organelles called glycosomes in which the first seven glycolytic enzymes are sequestered. We report the crystal structures of glycosomal fructose-1,6-bisphosphate aldolase from two major tropical pathogens, Trypanosoma brucei and Leishmania mexicana, the causative agents of African sleeping sickness and one form of leishmaniasis, respectively. Unlike mammalian aldolases, the T. brucei and L. mexicana aldolases contain nonameric N-terminal type 2 peroxisomal targeting signals (PTS2s) to direct their import into the glycosome. In both tetrameric trypanosomatid aldolases, the PTS2s from two different subunits form two closely intertwined structures. These "PTS2 dimers", which have very similar conformations in the two aldolase structures, are the first reported conformations of a glycosomal or peroxisomal PTS2, and provide opportunities for the design of trypanocidal compounds.


    Organizational Affiliation

    Departments of Biological Structure and Biochemistry Biomolecular Structure Center, University of Washington, Seattle, WA, 98195-7742, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FRUCTOSE-1,6-BISPHOSPHATE ALDOLASE
A, B, C, D
370Leishmania mexicanaGene Names: ald
EC: 4.1.2.13
Find proteins for Q9U5N6 (Leishmania mexicana)
Go to UniProtKB:  Q9U5N6
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.161 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 85.800α = 90.00
b = 118.100β = 90.00
c = 159.600γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling
CNSphasing
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-07-13
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance