Cloning and characterization of a bile salt hydrolase (bsh) from Bifidobacterium adolescentis
- 1 June 2005
- journal article
- research article
- Published by Springer Science and Business Media LLC in Biotechnology Letters
- Vol. 27 (12), 817-822
- https://doi.org/10.1007/s10529-005-6717-3
Abstract
A gene coding for bile salt hydrolase (BSH) from Bifidobacterium adolescentis was cloned and expressed in Escherichia coli, and the nucleotide sequence was determined. The BSH of E. coli transformants was produced intracellularly in the absence of bile salts. A unique bsh promoter (P bsh ) sequence was identified by using a Neural Network Promoter Prediction (NNPP, version 2.2). In spite of their high-level sequence homology with other bsh genes in the Bifidobacterium species, their genetic organization surrounding the bsh gene and their promoter sequences are different depending on the species.Keywords
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