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Updated: Jul 23, 2026
17:14
In vivo and in vitro Studies of Adaptor-clathrin Interaction
Published on: January 26, 2011
Structural adaptations in a membrane enzyme that terminates endocannabinoid signaling
Michael H Bracey1, Michael A Hanson, Kim R Masuda
1Department of Cell Biology, Skaggs Institute for Chemical Biology, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
Science (New York, N.Y.)
|December 3, 2002
Summary
Researchers revealed the crystal structure of fatty acid amide hydrolase (FAAH), an enzyme regulating endocannabinoid signaling lipids. This structure explains how FAAH integrates into cell membranes to control lipid-based neural communication.
Area of Science:
- Neuroscience
- Biochemistry
- Structural Biology
Background:
- Cellular communication relies on diverse chemical messengers, including signaling lipids.
- Endocannabinoid signaling lipids play crucial roles in the nervous system.
- Understanding the regulation of lipid-based neural signals is essential.
Purpose of the Study:
- To determine the crystal structure of fatty acid amide hydrolase (FAAH).
- To elucidate the mechanism by which FAAH integrates into cell membranes.
- To understand how FAAH regulates endocannabinoid signaling.
Main Methods:
- X-ray crystallography
- Determination of the 2.8 angstrom crystal structure of FAAH
- Complex formation with an arachidonyl inhibitor
Main Results:
- The crystal structure of integral membrane protein FAAH was determined at 2.8 angstrom resolution.
- The structure reveals discrete alterations enabling membrane integration, distinguishing it from soluble hydrolases.
- The active site of FAAH has direct access to the lipid bilayer.
Conclusions:
- FAAH's unique structure facilitates its integration into cell membranes.
- This structural adaptation allows FAAH to directly access and degrade membrane-embedded signaling lipids.
- The findings provide insights into the regulation of endocannabinoid signaling and neural communication.
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