4AZQ

Murine epidermal fatty acid-binding protein (FABP5) in complex with the endocannabinoid 2-arachidonoylglycerol


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Crystallographic Study of Fabp5 as an Intracellular Endocannabinoid Transporter.

Sanson, B.Wang, T.Sun, J.Wang, L.Kaczocha, M.Ojima, I.Deutsch, D.Li, H.

(2014) Acta Crystallogr D Biol Crystallogr 70: 290

  • DOI: 10.1107/S1399004713026795
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • In addition to binding intracellular fatty acids, fatty-acid-binding proteins (FABPs) have recently been reported to also transport the endocannabinoids anandamide (AEA) and 2-arachidonoylglycerol (2-AG), arachidonic acid derivatives that function as ...

    In addition to binding intracellular fatty acids, fatty-acid-binding proteins (FABPs) have recently been reported to also transport the endocannabinoids anandamide (AEA) and 2-arachidonoylglycerol (2-AG), arachidonic acid derivatives that function as neurotransmitters and mediate a diverse set of physiological and psychological processes. To understand how the endocannabinoids bind to FABPs, the crystal structures of FABP5 in complex with AEA, 2-AG and the inhibitor BMS-309403 were determined. These ligands are shown to interact primarily with the substrate-binding pocket via hydrophobic interactions as well as a common hydrogen bond to the Tyr131 residue. This work advances our understanding of FABP5-endocannabinoid interactions and may be useful for future efforts in the development of small-molecule inhibitors to raise endocannabinoid levels.


    Organizational Affiliation

    Biosciences Department, Brookhaven National Laboratory, Upton, NY 11973-5000, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FATTY ACID-BINDING PROTEIN, EPIDERMALA138Mus musculusMutation(s): 0 
Gene Names: Fabp5FabpeKlbpMal1
Find proteins for Q05816 (Mus musculus)
Explore Q05816 
Go to UniProtKB:  Q05816
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
G2A
Query on G2A

Download CCD File 
A
2-hydroxy-1-(hydroxymethyl)ethyl icosanoate
C23 H46 O4
KECCPKLXQUOWMI-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 
  • Space Group: P 64 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.48α = 90
b = 79.48β = 90
c = 82.7γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-08-14
    Type: Initial release
  • Version 1.1: 2014-02-12
    Changes: Database references
  • Version 1.2: 2014-02-26
    Changes: Database references
  • Version 1.3: 2019-01-30
    Changes: Data collection, Derived calculations, Experimental preparation, Other
  • Version 1.4: 2019-02-06
    Changes: Data collection, Experimental preparation