The crystal structure of triacylglycerol lipase from Pseudomonas glumae reveals a partially redundant catalytic aspartate.Noble, M.E., Cleasby, A., Johnson, L.N., Egmond, M.R., Frenken, L.G.
(1993) FEBS Lett 331: 123-128
- PubMed: 8405390
- DOI: https://doi.org/10.1016/0014-5793(93)80310-q
- Primary Citation of Related Structures:
- PubMed Abstract:
The family of lipases (triacylglycerol-acyl-hydrolases EC 126.96.36.199) constitutes an interesting class of enzymes because of their ability to interact with lipid-water interfaces, their wide range of substrate specificities, and their potential industrial applications. Here we report the first crystal structure of a bacterial lipase, from Pseudomonas glumae. The structure is formed from three domains, the largest of which contains a subset of the alpha/beta hydrolase fold and a calcium site. Asp263, the acidic residue in the catalytic triad, has previously been mutated into an alanine with only a modest reduction in activity.
Laboratory of Molecular Biophysics, Department of Biochemistry, Oxford, UK.