Monomeric sarcosine oxidase: structure of a covalently flavinylated amine oxidizing enzyme
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منابع مشابه
Characterization and mechanism of the berberine bridge enzyme, a covalently flavinylated oxidase of benzophenanthridine alkaloid biosynthesis in plants.
The berberine bridge enzyme ((S)-reticuline:oxygen oxidoreductase (methylene-bridge-forming), EC 1.5.3.9) catalyzes the oxidative cyclization of the N-methyl moiety of (S)-reticuline into the berberine bridge carbon, C-8, of (S)-scoulerine. This is a reaction that has neither an equivalent in organic chemistry nor a parallel in nature. The uniqueness of this catalytic reaction prompted an in de...
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Introduction The concentration of serum creatinine is widely used as an indicator of renal function. Sarcosine oxidase (SO) has been used in the enzymatic determination of creatinine in the clinical laboratory. SO has been isolated from various bacterial strains. It was first purified from Corynebacterium sp. U-96 (SO-U96) and shown to be a heterotetrameric enzyme. SO-U96 is a complex, bifuncti...
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Monomeric sarcosine oxidase (MSOX) is a flavoprotein D-amino acid oxidase with reported sarcosine and oxygen activation sites on the re and si faces of the flavin ring, respectively. O2 transport routes to the catalytic interior are not well understood and are difficult to ascertain solely from MSOX crystal structures. A composite free-energy method known as single-sweep is used to map and ther...
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The determination of creatinine levels in biological fluids is an increasingly important clinical requirement. Amperometric biosensors have been developed based on a three-enzyme system which converts creatinine to amperometrically measurable hydrogen peroxide. The development of the amperometric creatinine biosensor has been slow due the complexity of the three-enzyme system. This paper, the f...
متن کاملThe quinine-oxidizing enzyme and liver aldehyde oxidase.
A derivative of quinine formed in minced rabbit liver has been isolated by Kelsey et al. (I), and identified by Mead and Koepfli (2) as a carbostyril. Hence quinine is oxidized in liver with replacement of the hydrogen atom in position 2 of the quinoline ring by a hydroxy group. Analogous oxidation products are excreted by men receiving the four principal cinchona alkaloids. This change is impo...
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ژورنال
عنوان ژورنال: Structure
سال: 1999
ISSN: 0969-2126
DOI: 10.1016/s0969-2126(99)80043-4