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Synthesis of α-galacto-oligosaccharides by a cloned α-galactosidase from Bifidobacterium adolescentis

Synthesis of α-galacto-oligosaccharides by a cloned α-galactosidase from Bifidobacterium... A genomic library of Bifidobacterium adolescentis was constructed in Escherichia coli and a gene encoding an α-galactosidase was isolated. The identified open reading frame showed high similarity and identity with bacterial α-galactosidases, which belong to Family 36 of the glycosyl hydrolases. For the purification of the enzyme from the medium a single chromatography step was sufficient. The yield of the recombinant enzyme was 100 times higher than from B. adolescentis itself. In addition to hydrolytic activity the α-galactosidase showed transglycosylation activity and can be used for the production of α-galacto-oligosaccharides. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biotechnology Letters Springer Journals

Synthesis of α-galacto-oligosaccharides by a cloned α-galactosidase from Bifidobacterium adolescentis

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References (17)

Publisher
Springer Journals
Copyright
Copyright © 1999 by Kluwer Academic Publishers
Subject
Life Sciences; Biotechnology; Organic Chemistry; Biochemistry, general; Microbiology; Animal Anatomy / Morphology / Histology
ISSN
0141-5492
eISSN
1573-6776
DOI
10.1023/A:1005542521708
Publisher site
See Article on Publisher Site

Abstract

A genomic library of Bifidobacterium adolescentis was constructed in Escherichia coli and a gene encoding an α-galactosidase was isolated. The identified open reading frame showed high similarity and identity with bacterial α-galactosidases, which belong to Family 36 of the glycosyl hydrolases. For the purification of the enzyme from the medium a single chromatography step was sufficient. The yield of the recombinant enzyme was 100 times higher than from B. adolescentis itself. In addition to hydrolytic activity the α-galactosidase showed transglycosylation activity and can be used for the production of α-galacto-oligosaccharides.

Journal

Biotechnology LettersSpringer Journals

Published: Oct 1, 2004

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