amplification and cloning of d- amino acid oxidase; the enzyme catalyzes the antibiotic cephalosporin c to 7- amino cephalosporanic acid

Astudyon D-amino-acid Oxidase

INHIBITION OF THE d-AMINO ACID OXIDASE BY BENZOIC ACID

Benzoic acid has been reported to inhibit the oxidation of succinic acid by muscle (l), the oxidation of butyric acid and crotonic acid by liver slices (2), and the oxidation of acetoacetic acid by kidney slices (3). It has also been reported to inhibit the oxygen uptake of liver and kidney slices, diaphragm, minced liver, kidney, and brain (4). In the present work it was found that benzoic aci...

D-Amino Acid Oxidase and Metagenomics

D-amino acid oxidase (DAAO, EC 1. 4. 3. 3) converts D-amino acid to a corresponding α-keto acid via deamination. D-amino acid oxidase is one of the most important enzymes responsible for maintenance proper level of D-amino acids, which play a key role in regulation of many processes in living cells. This paper summary the applications of D-amino acid oxidase in agricultural and industry practic...

Biological role of D-amino acid oxidase and D-aspartate oxidase. Effects of D-amino acids.

D-Amino acids administered to animals are absorbed by the intestine and transported through the blood-stream to solid tissues where they are oxidized in vivo by D-amino acid oxidase and D-aspartate oxidase to produce the same compounds they do in vitro; i.e. NH3, H2O2, and the keto acid corresponding to the amino acid ingested. In the liver and kidneys of the animals, an inverse relationship ex...

Inhibition of D - Amino Acid Oxidase

In an earlier paper from this laboratory (1) there were described the characteristics of competitive inhibition resulting from the interference of certain aromatic compounds with the association of flavin adenine dinucleotide and the separated protein of n-amino acid oxidase. Included among the inhibitors were auramine, quinine, and various other quinolines and anilines. We now present our find...

Assays of D-Amino Acid Oxidase Activity

D-amino acid oxidase (DAAO) is a well-known flavoenzyme that catalyzes the oxidative FAD-dependent deamination of D-amino acids. As a result of the absolute stereoselectivity and broad substrate specificity, microbial DAAOs have been employed as industrial biocatalysts in the production of semi-synthetic cephalosporins and enantiomerically pure amino acids. Moreover, in mammals, DAAO is present...