1QXS

CRYSTAL STRUCTURE OF Trypanosoma cruzi GLYCERALDEHYDE-3- PHOSPHATE DEHYDROGENASE COMPLEXED WITH AN ANALOGUE OF 1,3- BisPHOSPHO-D-GLYCERIC ACID


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.202 

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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Crystal structure of Trypanosoma cruzi glyceraldehyde-3-phosphate dehydrogenase complexed with an analogue of 1,3-bisphospho-d-glyceric acid.

Ladame, S.Castilho, M.S.Silva, C.H.Denier, C.Hannaert, V.Perie, J.Oliva, G.Willson, M.

(2003) Eur J Biochem 270: 4574-4586

  • DOI: 10.1046/j.1432-1033.2003.03857.x
  • Primary Citation of Related Structures:  
    1QXS

  • PubMed Abstract: 
  • We report here the first crystal structure of a stable isosteric analogue of 1,3-bisphospho-d-glyceric acid (1,3-BPGA) bound to the catalytic domain of Trypanosoma cruzi glycosomal glyceraldehyde-3-phosphate dehydrogenase (gGAPDH) in which the two phosphoryl moieties interact with Arg249 ...

    We report here the first crystal structure of a stable isosteric analogue of 1,3-bisphospho-d-glyceric acid (1,3-BPGA) bound to the catalytic domain of Trypanosoma cruzi glycosomal glyceraldehyde-3-phosphate dehydrogenase (gGAPDH) in which the two phosphoryl moieties interact with Arg249. This complex possibly illustrates a step of the catalytic process by which Arg249 may induce compression of the product formed, allowing its expulsion from the active site. Structural modifications were introduced into this isosteric analogue and the respective inhibitory effects of the resulting diphosphorylated compounds on T. cruzi and Trypanosoma brucei gGAPDHs were investigated by enzymatic inhibition studies, fluorescence spectroscopy, site-directed mutagenesis, and molecular modelling. Despite the high homology between the two trypanomastid gGAPDHs (> 95%), we have identified specific interactions that could be used to design selective irreversible inhibitors against T. cruzi gGAPDH.


    Organizational Affiliation

    Laboratoire de Synthèse et de Physico-Chimie de Molécules d'Intérêt Biologique UMR-CNRS 5068, Université Paul Sabatier, Toulouse, France. sl324@cam.ac.uk



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Glyceraldehyde 3-phosphate dehydrogenase, glycosomalC [auth A], D [auth B], A [auth C], B [auth D]359Trypanosoma cruziMutation(s): 0 
EC: 1.2.1.12
UniProt
Find proteins for P22513 (Trypanosoma cruzi)
Explore P22513 
Go to UniProtKB:  P22513
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAD (Subject of Investigation/LOI)
Query on NAD

Download Ideal Coordinates CCD File 
E [auth C], F [auth D], G [auth A], I [auth B]NICOTINAMIDE-ADENINE-DINUCLEOTIDE
C21 H27 N7 O14 P2
BAWFJGJZGIEFAR-NNYOXOHSSA-N
 Ligand Interaction
S70 (Subject of Investigation/LOI)
Query on S70

Download Ideal Coordinates CCD File 
H [auth A]3-HYDROXY-2-OXO-4-PHOPHONOXY- BUTYL)-PHOSPHONIC ACID
C4 H10 O9 P2
ISHNYNQEXZYUQN-VKHMYHEASA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.202 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.756α = 90
b = 85.195β = 96.74
c = 106.421γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MAR345data collection
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-05-11
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description