Identification of Two-Component Regulatory Genes Involved in o-Xylene Degradation by Rhodococcus sp. Strain DK17

Dockyu Kim; Jong-Chan Chae; Gerben J. Zylstra; Ho-Yong Sohn; Gi-Seok Kwon; Eungbin Kim

doi:2138 [pii]

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Research Support, U.S. Gov't, Non-P.H.S.
Identification of Two-Component Regulatory Genes Involved in o-Xylene Degradation by Rhodococcus sp. Strain DK17: Dockyu Kim ^1,5, Jong-Chan Chae ², Gerben J. Zylstra ², Ho-Yong Sohn ³, Gi-Seok Kwon ⁴, Eungbin Kim ¹; Journal of Microbiology 2005;43(1):49-53
DOI: https://doi.org/2138 [pii]

¹Laboratory of Environmental Microbial Genomics, Department of Biology, Yonsei University, Seoul 120-749, Republic of Korea, ²Biotechnology Center for Agriculture and the Environment, Cook College, Rutgers University, New Brunswick, New Jersey 08901-8520, USA ³Department of Food and Nutrition, Andong National University, Andong 760-749, Republic of Korea, ⁴The School of Bioresource Science, Andong National University, Andong 760-749, Republic of Korea, ⁵Microbial Resources Bank, Microbial Genomics and Applications Center Korea Research Institute of Bioscience and Biotechnology, Taejon 305-333, Republic of Korea¹Laboratory of Environmental Microbial Genomics, Department of Biology, Yonsei University, Seoul 120-749, Republic of Korea, ²Biotechnology Center for Agriculture and the Environment, Cook College, Rutgers University, New Brunswick, New Jersey 08901-8520, USA ³Department of Food and Nutrition, Andong National University, Andong 760-749, Republic of Korea, ⁴The School of Bioresource Science, Andong National University, Andong 760-749, Republic of Korea, ⁵Microbial Resources Bank, Microbial Genomics and Applications Center Korea Research Institute of Bioscience and Biotechnology, Taejon 305-333, Republic of Korea

Corresponding author: Eungbin Kim , Tel: 82-2-2123-2651,

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Abstract

Putative genes for a two-component signal transduction system (akbS and akbT) were detected near the alkylbenzene-degrading operon of Rhodococcus sp. DK17. Sequence analysis indicates that AkbS possesses potential ATP-binding and histidine autophosphorylation sites in the N- and C-terminal regions, respectively, and that AkbT has a typical response regulator domain. Mutant analysis combined with RT-PCR experiments further shows that AkbS is required to induce the expression of o-xylene dioxygenase in DK17.

Keywords: Rhodococcus; two-component signal transduction proteins; alkylbenzenes

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Identification of Two-Component Regulatory Genes Involved in o-Xylene Degradation by Rhodococcus sp. Strain DK17

J. Microbiol. 2005;43(1):49-53.

DOI: https://doi.org/2138 [pii]

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