2MGY

Solution structure of the mitochondrial translocator protein (TSPO) in complex with its high-affinity ligand PK11195


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 105 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Structure of the mitochondrial translocator protein in complex with a diagnostic ligand.

Jaremko, L.Jaremko, M.Giller, K.Becker, S.Zweckstetter, M.

(2014) Science 343: 1363-1366

  • DOI: 10.1126/science.1248725
  • Primary Citation of Related Structures:  
    2MGY

  • PubMed Abstract: 
  • The 18-kilodalton translocator protein TSPO is found in mitochondrial membranes and mediates the import of cholesterol and porphyrins into mitochondria. In line with the role of TSPO in mitochondrial function, TSPO ligands are used for a variety of diagnostic and therapeutic applications in animals and humans ...

    The 18-kilodalton translocator protein TSPO is found in mitochondrial membranes and mediates the import of cholesterol and porphyrins into mitochondria. In line with the role of TSPO in mitochondrial function, TSPO ligands are used for a variety of diagnostic and therapeutic applications in animals and humans. We present the three-dimensional high-resolution structure of mammalian TSPO reconstituted in detergent micelles in complex with its high-affinity ligand PK11195. The TSPO-PK11195 structure is described by a tight bundle of five transmembrane α helices that form a hydrophobic pocket accepting PK11195. Ligand-induced stabilization of the structure of TSPO suggests a molecular mechanism for the stimulation of cholesterol transport into mitochondria.


    Organizational Affiliation

    Max-Planck-Institut für Biophysikalische Chemie, 37077 Göttingen, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Translocator proteinA169Mus musculusMutation(s): 0 
Gene Names: TspoBzrpMbr
Membrane Entity: Yes 
UniProt
Find proteins for P50637 (Mus musculus)
Explore P50637 
Go to UniProtKB:  P50637
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP50637
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PKA
Query on PKA

Download Ideal Coordinates CCD File 
B [auth A]N-[(2R)-butan-2-yl]-1-(2-chlorophenyl)-N-methylisoquinoline-3-carboxamide
C21 H21 Cl N2 O
RAVIZVQZGXBOQO-CQSZACIVSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
PKA BindingDB:  2MGY Ki: min: 0.31, max: 28.8 (nM) from 17 assay(s)
Kd: min: 0.6, max: 2 (nM) from 2 assay(s)
IC50: min: 1.3, max: 12 (nM) from 14 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 105 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-04-02
    Type: Initial release