4AZR

Human epidermal fatty acid-binding protein (FABP5) in complex with the endocannabinoid anandamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.219 

wwPDB Validation 3D Report Full Report


This is version 1.2 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.,Sect.D 70: 290

  • DOI: 10.1107/S1399004713026795
  • Primary Citation of Related Structures:  

  • 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.,Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY 11794-5213, USA.,Department of Chemistry, Stony Brook University, Stony Brook, NY 1794-3400, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FATTY ACID-BINDING PROTEIN, EPIDERMAL
A, B
138Homo sapiensMutation(s): 0 
Gene Names: FABP5
Find proteins for Q01469 (Homo sapiens)
Go to Gene View: FABP5
Go to UniProtKB:  Q01469
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
A9M
Query on A9M

Download SDF File 
Download CCD File 
A, B
N-(2-hydroxyethyl)icosanamide
C22 H45 N O2
AUJVQJHODMISJP-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.219 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 66.120α = 90.00
b = 115.150β = 90.00
c = 108.350γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
MOLREPphasing
REFMACrefinement
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-08-07
    Type: Initial release
  • Version 1.1: 2014-02-12
    Type: Database references
  • Version 1.2: 2014-02-26
    Type: Database references