Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 41.80 kDa 
• Atom Count: 2686 
• Residue Count: 292 
• Unique protein chains: 1

1OKC

structure of mitochondrial ADP/ATP carrier in complex with carboxyatractyloside

• DOI: 10.2210/pdb1OKC/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 2003-07-21 Released: 2003-11-07 
• Deposition Author(s): Pebay-Peyroula, E., Dahout-Gonzalez, C., Kahn, R., Trezeguet, V., Lauquin, G.J.-M., Brandolin, G.

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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 

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

• PubMed: 14603310 
• 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 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.

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Organizational Affiliation: 

Institut de Biologie Structurale, UMR 5075 CEA-CNRS-Université Joseph Fourier, 41 rue Jules Horowitz, F-38027, Grenoble cedex 1, France. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ADP, ATP CARRIER PROTEIN HEART ISOFORM T1	A	297	Bos taurus	Mutation(s): 0  Gene Names: SLC25A4, ANT1
Find proteins for P02722 (Bos taurus) Explore P02722  Go to UniProtKB:  P02722

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CDL	A	CARDIOLIPIN C81 H156 O17 P2 XVTUQDWPJJBEHJ-KZCWQMDCSA-L
PC1	A	1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE C44 H88 N O8 P NRJAVPSFFCBXDT-HUESYALOSA-N
CXT	A	Carboxyatractyloside C31 H46 O18 S2 AQFATIOBERWBDY-LNQSNDDKSA-N
LDM	A	3-LAURYLAMIDO-N,N'-DIMETHYLPROPYLAMINOXYDE C17 H36 N2 O2 JNGWKQJZIUZUPR-UHFFFAOYSA-N

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 = 85.437	α = 90
b = 83.463	β = 90
c = 49.922	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
DENZO	data reduction
CCP4	data scaling
CCP4	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-07-21 
• Released Date: 2003-11-07 
Deposition Author(s): Pebay-Peyroula, E., Dahout-Gonzalez, C., Kahn, R., Trezeguet, V., Lauquin, G.J.-M., Brandolin, G.

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