Crystal structure of closed form of Monoacylglycerol Lipase

Experimental Data Snapshot

  • Resolution: 1.96 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.243 
  • R-Value Observed: 0.245 

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Substrate selectivity of bacterial monoacylglycerol lipase based on crystal structure

Tsurumura, T.Tsuge, H.

(2014) J Struct Funct Genomics 15: 83-89

  • DOI: https://doi.org/10.1007/s10969-014-9181-2
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Lipases, which are conserved from bacteria to mammals, catalyze the hydrolysis of acylglycerol to free fatty acids and glycerol. Monoacylglycerol lipase (MGL) specifically catalyzes the hydrolysis of monoacylglycerol. Although there have been numerous studies of the structure of lipases, there have been few studies of MGL. Here, we report the crystal structure of authentic MGL isolated from Bacillus sp. H257 (bMGL). The crystal diffracts to 1.96 Å resolution. It belongs to space group P21212, and the unit cell parameters are a=99.7 Å, b=106.1 Å and c=43.0 Å. As in other lipases, three structural features for lipase activity are conserved in bMGL: the glycine-X-serine-X-glycine motif, catalytic triad and cap region. The structure of bMGL appears to be closed, as the cap region covers the active site entrance. The isolated bMGL hydrolyzed 2-AG, a known human MGL-specific substrate. Based on a 2-AG bound model, we discuss the substrate selectivity. The functional and structural features of bMGL provide insight how its substrate selectivity is determined and how specific inhibitors of bacterial MGL could be designed, which may be useful for development of novel antibiotics.

  • Organizational Affiliation

    Faculty of Life Sciences, Kyoto Sangyo University, Kamigamo-Motoyama, Kita-ku, Kyoto, 603-8555, Japan, ttsuru@cc.kyoto-su.ac.jp.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Thermostable monoacylglycerol lipase
A, B
250Bacillus sp. H-257Mutation(s): 0 
Find proteins for P82597 (Bacillus sp. (strain H-257))
Explore P82597 
Go to UniProtKB:  P82597
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP82597
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.96 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.243 
  • R-Value Observed: 0.245 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 99.755α = 90
b = 106.191β = 90
c = 43.053γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-07-02
    Type: Initial release
  • Version 1.1: 2014-12-24
    Changes: Database references
  • Version 1.2: 2023-11-08
    Changes: Data collection, Database references, Derived calculations, Refinement description