Bioscience, Biotechnology, and Biochemistry
Online ISSN : 1347-6947
Print ISSN : 0916-8451
Microbiology & Fermentation Technology Communication
AxyR, an AraC Family Transcriptional Activator of the Xylanase 3 Gene, Requires Xylo-Oligosaccharides as a Cofactor for DNA Binding in Paenibacillus sp. Strain W-61
Mutsumi FUKUDAShigeki YOSHIDAHiroya ITOHYoji KATOSeiji WATANABEYoshifumi ITOHYoshiyuki KAMIOJun KANEKO
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2012 Volume 76 Issue 5 Pages 1051-1054

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Abstract

The xylanolytic bacterium Paenibacillus sp. strain W-61 encodes three extracellular xylanase genes, xyn1, xyn3, and xyn5. In this study, we identified a transcriptional activator required for transcription of the xyn3 gene in strain W-61. The activator, AxyR, contained the highly homologous AraC-type DNA binding domain and required xylobiose, xylotriose, or xylotetraose as cofactor for binding to the xyn3 promoter region.

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© 2012 by Japan Society for Bioscience, Biotechnology, and Agrochemistry
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