6yn7 | pdb_00006yn7

Crystal Structure of AHE enzyme from Alicyclobacillus herbarius

spinqualitylabelsall models 6yn7, resolution 1.98Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6yn7 is a 4 chain structure with sequence from Alicyclobacillus herbarius. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: EDO, NI, PEG, PGE Activity: Beta-galactosidase, with EC number 3.2.1.23 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed beta-Glucosidases are used in the food industry to hydrolyse glycosidic bonds in complex sugars, with enzymes sourced from extremophiles better able to tolerate the process conditions. In this work, a novel beta-glycosidase from the acidophilic organism Alicyclobacillus herbarius was cloned and heterologously expressed in Escherichia coli BL21(DE3). AheGH1 was stable over a broad range of pH values (5-11) and temperatures (4-55 degrees C). The enzyme exhibited excellent tolerance to fructose and good tolerance to glucose, retaining 65 % activity in the presence of 10 % (w/v) glucose. It also tolerated organic solvents, some of which appeared to have a stimulating effect, in particular ethanol with a 1.7-fold increase in activity at 10 % (v/v). The enzyme was then applied for the cleavage of isoflavone from isoflavone glucosides in an ethanolic extract of soy flour, to produce soy isoflavones, which constitute a valuable food supplement, full conversion was achieved within 15 min at 30 degrees C. Release of Soybean Isoflavones by Using a beta-Glucosidase from Alicyclobacillus herbarius.,Delgado L, Heckmann CM, Di Pisa F, Gourlay L, Paradisi F Chembiochem. 2020 Nov 25. doi: 10.1002/cbic.202000688. PMID:33237595 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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