Cross-linked Enzyme Aggregates of Pig Liver Esterase Evaluated in Kinetic Resolution of Racemic Clopidogrel
نویسندگان
چکیده
منابع مشابه
Cross-linked Enzyme Aggregates of Catalase from Bovine Liver
Stabilization of multimeric enzymes is one of the major challenges in biocatalysis, because dissociation of subunits can inactivate the enzyme. Catalase (CAT; EC 1.11.16) is a homotetramer containing Fe-protoporphyrin IX in its active site. CAT breaks down hydrogen peroxide into water and molecular oxygen. In this study, crosslinked enzyme aggregates of bovine liver CAT (CAT-CLEAs) were prepare...
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Force field and first principles molecular dynamics simulations on complexes of pig liver esterase (pig liver isoenzymes and a mutant) and selected substrates (1-phenyl-1-ethyl acetate, 1phenyl-2-butylacetate, proline-β-naphthylamide and methyl butyrate) are presented. By restrained force field simulations the access of the substrate to the hidden active site was probed. For a few substrates sp...
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The reaction of furylacrylic acid with cyclopentadiene in toluene gave the expected Diels-Alder endo-and exo-adductsin -1 : 1 ratio. The adducts were separated by iodolactonization method to provide 3-endo-(2'-furyl) bicyclo 12.2.11 hept-5-ene- 2-exo-carboxylic acid and 3-exo-(2'-fury1)bicyclo 12.2.11 hept-5-ene-2-endocarboxylic acid. Esterification of these acids by MeI / HMPA gave the exp...
متن کاملUse of Cross-Linked Enzyme Aggregates (CLEAs) for performing biotransformations
The methodology for the preparation of cross-linked enzyme aggregates (CLEAs) and their application as highly effective, recyclable biocatalysts in a wide variety of transformations is reviewed. The method constitutes a combination of enzyme purification and immobilization into a single operation and allows for the use of relatively crude enzyme preparations. The resulting CLEAs have excellent ...
متن کاملOptimization of Enzymatic Synthesis of Ampicillin Using Cross-Linked Aggregates of Penicillin G Acylase
Penicillin G acylase from E. coli TA1 was immobilized by Cross-Linked Enzyme Aggregates (CLEA), a new method for immobilization. This biocatalyst and commercial immobilized penicillin G acylase (PGA-450) were used to study the effect of pH, temperature and substrate concentration on the synthesis of ampicillin from phenyl glycine methyl ester (PGME) and 6-aminopenicillanic acid (6-APA). Compare...
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ژورنال
عنوان ژورنال: Biotechnology(Faisalabad)
سال: 2017
ISSN: 1682-296X
DOI: 10.3923/biotech.2017.123.129