Rifamycin B. oxidase from Monocillium spp., a new type of diphenol oxidase

Moon H. Han; Seong Baik-Lin; Hyeung Jin Son; Mheen Tae-Ick

doi:10.1016/0014-5793(83)80337-8

Rifamycin B. oxidase from Monocillium spp., a new type of diphenol oxidase

Moon H. Han, Seong Baik-Lin, Hyeung Jin Son, Mheen Tae-Ick

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Abstract

It was found that enzyme from a microbial strain, Monocillium spp. ATCC 20621, catalyzed the oxidative reaction of rifamycin B to form rifamycin O. The identification of the reaction products suggested that the reaction proceeded by the oxidative cyclization of rifamycin B to give rifamycin O, which spontaneously hydrolyzed to rifamycin S in neutral aqueous milieu. The characteristic of the enzyme was different as compared with that of other polyphenol oxidases such as laccase. It is proposed that this new type of enzyme be classified into a subgroup EC 1.10.3.6 with a trival name rifamycin B oxidase.

Original language	English
Pages (from-to)	36-40
Number of pages	5
Journal	FEBS Letters
Volume	151
Issue number	1
DOIs	https://doi.org/10.1016/0014-5793(83)80337-8
Publication status	Published - 1983 Jan 10

All Science Journal Classification (ASJC) codes

Biophysics
Structural Biology
Biochemistry
Molecular Biology
Genetics
Cell Biology

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AU - Baik-Lin, Seong

AU - Son, Hyeung Jin

AU - Tae-Ick, Mheen

PY - 1983/1/10

Y1 - 1983/1/10

N2 - It was found that enzyme from a microbial strain, Monocillium spp. ATCC 20621, catalyzed the oxidative reaction of rifamycin B to form rifamycin O. The identification of the reaction products suggested that the reaction proceeded by the oxidative cyclization of rifamycin B to give rifamycin O, which spontaneously hydrolyzed to rifamycin S in neutral aqueous milieu. The characteristic of the enzyme was different as compared with that of other polyphenol oxidases such as laccase. It is proposed that this new type of enzyme be classified into a subgroup EC 1.10.3.6 with a trival name rifamycin B oxidase.

AB - It was found that enzyme from a microbial strain, Monocillium spp. ATCC 20621, catalyzed the oxidative reaction of rifamycin B to form rifamycin O. The identification of the reaction products suggested that the reaction proceeded by the oxidative cyclization of rifamycin B to give rifamycin O, which spontaneously hydrolyzed to rifamycin S in neutral aqueous milieu. The characteristic of the enzyme was different as compared with that of other polyphenol oxidases such as laccase. It is proposed that this new type of enzyme be classified into a subgroup EC 1.10.3.6 with a trival name rifamycin B oxidase.

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Rifamycin B. oxidase from Monocillium spp., a new type of diphenol oxidase

Abstract

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