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

  • 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 d ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Translocator protein
A
169Mus musculusMutation(s): 0 
Gene Names: Tspo (Bzrp, Mbr)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Translocator Protein (18 kDA) TSPO
Protein: 
Mitochondrial translocator protein (TSPO) in complex with PK11195
Find proteins for P50637 (Mus musculus)
Go to UniProtKB:  P50637
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PKA
Query on PKA

Download SDF File 
Download CCD File 
A
N-[(2R)-butan-2-yl]-1-(2-chlorophenyl)-N-methylisoquinoline-3-carboxamide
C21 H21 Cl N2 O
RAVIZVQZGXBOQO-CQSZACIVSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
PKAKi: 0.7 nM (94) BINDINGDB
PKAIC50: 9 nM (94) BINDINGDB
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 or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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