1OKC

structure of mitochondrial ADP/ATP carrier in complex with carboxyatractyloside


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.220 

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This is version 1.1 of the entry. See complete history


Literature

Structure of Mitochondrial Adp/ATP Carrier in Complex with Carboxyatractyloside

Pebay-Peyroula, E.Dahout-Gonzalez, C.Kahn, R.Trezeguet, V.Lauquin, G.J.-M.Brandolin, G.

(2003) Nature 426: 39

  • DOI: 10.1038/nature02056
  • Primary Citation of Related Structures:  
    1OKC

  • PubMed Abstract: 
  • ATP, the principal energy currency of the cell, fuels most biosynthetic reactions in the cytoplasm by its hydrolysis into ADP and inorganic phosphate. Because resynthesis of ATP occurs in the mitochondrial matrix, ATP is exported into the cytoplasm while ...

    ATP, the principal energy currency of the cell, fuels most biosynthetic reactions in the cytoplasm by its hydrolysis into ADP and inorganic phosphate. Because resynthesis of ATP occurs in the mitochondrial matrix, ATP is exported into the cytoplasm while ADP is imported into the matrix. The exchange is accomplished by a single protein, the ADP/ATP carrier. Here we have solved the bovine carrier structure at a resolution of 2.2 A by X-ray crystallography in complex with an inhibitor, carboxyatractyloside. Six alpha-helices form a compact transmembrane domain, which, at the surface towards the space between inner and outer mitochondrial membranes, reveals a deep depression. At its bottom, a hexapeptide carrying the signature of nucleotide carriers (RRRMMM) is located. Our structure, together with earlier biochemical results, suggests that transport substrates bind to the bottom of the cavity and that translocation results from a transient transition from a 'pit' to a 'channel' conformation.


    Organizational Affiliation

    Institut de Biologie Structurale, UMR 5075 CEA-CNRS-Université Joseph Fourier, 41 rue Jules Horowitz, F-38027, Grenoble cedex 1, France. pebay@ibs.fr



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ADP, ATP CARRIER PROTEIN HEART ISOFORM T1 A297Bos taurusMutation(s): 0 
Gene Names: SLC25A4ANT1
Find proteins for P02722 (Bos taurus)
Explore P02722 
Go to UniProtKB:  P02722
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.220 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.437α = 90
b = 83.463β = 90
c = 49.922γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
CCP4data scaling
CCP4phasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-11-07
    Type: Initial release
  • Version 1.1: 2014-01-29
    Changes: Advisory, Derived calculations, Non-polymer description, Other, Refinement description, Source and taxonomy, Structure summary, Version format compliance