1NQO

Glyceraldehyde-3-Phosphate Dehydrogenase Mutant With Cys 149 Replaced By Ser Complexed With Nad+ and D-Glyceraldehyde-3-Phosphate

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.194 

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This is version 1.2 of the entry. See complete history. 


Literature

Crystal structure of two ternary complexes of phosphorylating Glyceraldehyde-3-Phosphate Dehydrogenase from Bacillus stearothermophilus with NAD and D-Glyceraldehyde-3-Phosphate

Didierjean, C., Corbier, C., Fatih, M., Favier, F., Boschi-Muller, S., Branlant, G., Aubry, A.

(2003) J Biol Chem 278: 12968-12976

  • DOI: 10.1074/jbc.M211040200
  • Primary Citation of Related Structures:  
    1NQO, 1NPT, 1NQ5, 1NQA

  • PubMed Abstract: 

    • The crystal structure of the phosphorylating glyceraldehyde-3-phosphate dehydrogenase (GAPDH) from Bacillus stearothermophilus was solved in complex with its cofactor, NAD, and its physiological substrate, D-glyceraldehyde 3-phosphate (D-G3P). To isolate a stable ternary complex, the nucleophilic residue of the active site, Cys(149), was substituted with alanine or serine ...

    The crystal structure of the phosphorylating glyceraldehyde-3-phosphate dehydrogenase (GAPDH) from Bacillus stearothermophilus was solved in complex with its cofactor, NAD, and its physiological substrate, D-glyceraldehyde 3-phosphate (D-G3P). To isolate a stable ternary complex, the nucleophilic residue of the active site, Cys(149), was substituted with alanine or serine. The C149A and C149S GAPDH ternary complexes were obtained by soaking the crystals of the corresponding binary complexes (enzyme.NAD) in a solution containing G3P. The structures of the two binary and the two ternary complexes are presented. The D-G3P adopts the same conformation in the two ternary complexes. It is bound in a non-covalent way, in the free aldehyde form, its C-3 phosphate group being positioned in the P(s) site and not in the P(i) site. Its C-1 carbonyl oxygen points toward the essential His(176), which supports the role proposed for this residue along the two steps of the catalytic pathway. Arguments are provided that the structures reported here are representative of a productive enzyme.NAD.D-G3P complex in the ground state (Michaelis complex).

    Organizational Affiliation: 

    Laboratoire de Cristallographie et de Modélisation des Matériaux Minéraux et Biologiques, Groupe Biocristallographie, UMR 7036, CNRS-Université Henri Poincaré, Faculté des Sciences, 54506 Vandoeuvre Cedex, France.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Glyceraldehyde 3-phosphate dehydrogenaseC [auth A], D [auth C], A [auth O], B [auth Q]334Geobacillus stearothermophilusMutation(s): 1 
Gene Names: gap
EC: 1.2.1.12
UniProt
Find proteins for P00362 (Geobacillus stearothermophilus)
Explore P00362 
Go to UniProtKB:  P00362
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.194 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 140.306α = 90
b = 87.838β = 119.05
c = 119.41γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-04-22
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance