5gw8

Crystal structure of a putative DAG-like lipase (MgMDL2) from Malassezia globosa

spinqualitylabelsall models 5gw8, resolution 2.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5gw8 is a 2 chain structure with sequence from Malassezia globosa CBS 7966. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2Å Ligands: ACY, FMT, GOL, MLA, NAG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function A8PUY5_MALGO Publication Abstract from PubMed Lipases play an important role in physiological metabolism and diseases, and also have multiple industrial applications. Rational modification of lipase specificity may increase the commercial utility of this group of enzymes, but is hindered by insufficient mechanistic understanding. Here, we report the 2.0 A resolution crystal structure of a mono- and di-acylglycerols lipase from Malassezia globosa (MgMDL2). Interestingly, residues Phe278 and Glu282 were found to involve in substrate recognition because mutation on each residue led to convert MgMDL2 to a triacylglycerol (TAG) lipase. The Phe278Ala and Glu282Ala mutants also acquired ability to synthesize TAGs by esterification of glycerol and fatty acids. By in silicon analysis, steric hindrance of these residues seemed to be key factors for the altered substrate specificity. Our work may shed light on understanding the unique substrate selectivity mechanism of mono- and di-acylglycerols lipases, and provide a new insight for engineering biocatalysts with desired catalytic behaviors for biotechnological application. Malassezia globosa MgMDL2 lipase: Crystal structure and rational modification of substrate specificity.,Lan D, Xu H, Xu J, Dubin G, Liu J, Iqbal Khan F, Wang Y Biochem Biophys Res Commun. 2017 Jun 24;488(2):259-265. doi:, 10.1016/j.bbrc.2017.04.103. Epub 2017 Apr 20. PMID:28433636 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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