Crystal structure of human monoglyceride lipase

Experimental Data Snapshot

  • Resolution: 2.20 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 

Starting Model: experimental
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This is version 1.3 of the entry. See complete history


Crystal Structure of the Human Monoacylglycerol Lipase, a Key Actor in Endocannabinoid Signaling

Labar, G.Bauvois, C.Borel, F.Ferrer, J.-L.Wouters, J.Lambert, D.M.

(2010) Chembiochem 11: 218-227

  • DOI: https://doi.org/10.1002/cbic.200900621
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    2-Arachidonoylglycerol plays a major role in endocannabinoid signaling, and is tightly regulated by the monoacylglycerol lipase (MAGL). Here we report the crystal structure of human MAGL. The protein crystallizes as a dimer, and despite structural homologies to haloperoxidases and esterases, it distinguishes itself by a wide and hydrophobic access to the catalytic site. An apolar helix covering the active site also gives structural insight into the amphitropic character of MAGL, and likely explains how MAGL interacts with membranes to recruit its substrate. Docking of 2-arachidonoylglycerol highlights a hydrophobic and a hydrophilic cavity that accommodate the lipid into the catalytic site. Moreover, we identified Cys201 as the crucial residue in MAGL inhibition by N-arachidonylmaleimide, a sulfhydryl-reactive compound. Beside the advance in the knowledge of endocannabinoids degradation routes, the structure of MAGL paves the way for future medicinal chemistry works aimed at the design of new drugs exploiting 2-arachidonoylglycerol transmission.

  • Organizational Affiliation

    Unité de Chimie Pharmaceutique et de Radiopharmacie (CMFA), Louvain Drug Research Institute, Université catholique de Louvain, Faculté de Médecine, Avenue E. Mounier 73.40, 1200 Brussels, Belgium.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Monoglyceride lipase
A, B
342Homo sapiensMutation(s): 0 
Gene Names: MGLL
UniProt & NIH Common Fund Data Resources
Find proteins for Q99685 (Homo sapiens)
Explore Q99685 
Go to UniProtKB:  Q99685
GTEx:  ENSG00000074416 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ99685
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.20 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.86α = 90
b = 127.23β = 90
c = 137.14γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-12-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.2: 2024-03-20
    Changes: Data collection, Database references, Derived calculations
  • Version 1.3: 2024-04-03
    Changes: Refinement description