NOTE] Identification of the Vibrio vulnificus htpG Gene and Its Influence on Cold Shock Recovery

Slae Choi; Kyungku Jang; Seulah Choi; Hee-jee Yun; Dong-Hyun Kang

doi:10.1007/s12275-012-2294-z

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NOTE] Identification of the Vibrio vulnificus htpG Gene and Its Influence on Cold Shock Recovery: Slae Choi ¹, Kyungku Jang ¹, Seulah Choi ², Hee-jee Yun ², Dong-Hyun Kang ¹; Journal of Microbiology 2012;50(4):707-711.
DOI: https://doi.org/10.1007/s12275-012-2294-z
Published online: August 25, 2012

¹Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea, ²Hankuk Academy of Foreign Studies, Yongin 449-791, Republic of Korea

Corresponding author: Dong-Hyun Kang , Tel: +82-2-880-2697,

Received: 30 May 2012 • Accepted: 17 July 2012

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Abstract

An htpG gene encoding the heat shock protein HtpG was identified and cloned from Vibrio vulnificus. The deduced amino acid sequence of HtpG from V. vulnificus exhibited 71 and 85% identity to those reported from Escherichia coli and V. cholera, respectively. Functions of HtpG were assessed by the construction of an isogenic mutant whose htpG gene was deleted and by evaluating its phenotype changes during and after cold shock. The results demonstrated that recovery of the wild type from cold shock was significantly faster (p<0.05) than that of the htpG mutant, and indicated that the chaperone protein HtpG contributes to cold shock recovery, rather than cold shock tolerance, of V. vulnificus.

Keywords: V. vulnificus htpG;cold shock;heat shock protein;chaperone

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NOTE] Identification of the Vibrio vulnificus htpG Gene and Its Influence on Cold Shock Recovery

J. Microbiol. 2012;50(4):707-711. Published online August 25, 2012

DOI: https://doi.org/10.1007/s12275-012-2294-z

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