Download MendeleyCrystallographic 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
- PubMed: 24531463
- DOI: https://doi.org/10.1107/S1399004713026795
- Primary Citation of Related Structures:
4AZM, 4AZN, 4AZO, 4AZP, 4AZQ, 4AZR - 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 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.
