Classification of Hybrid and Altered Vibrio cholerae Strains by CTX Prophage and RS1 Element Structure

Je Hee Lee; Seon Young Choi; Yoon-Seong Jeon; Hye Ri Lee; Eun Jin Kim; Binh Minh Nguyen; Nguyen Tran Hien; M. Ansaruzzaman; M. Sirajul Islam; Nurul A. Bhuiyan; S.K. Niyogi; B.L. Sarkar; G. Balakrish Nair; Dae Shick Kim; Anna Lena Lopez; Cecil Czerkinsky; John D. Clemens; Jongsik Chun; Dong Wook Kim

doi:10.1007/s12275-009-0292-6

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Classification of Hybrid and Altered Vibrio cholerae Strains by CTX Prophage and RS1 Element Structure: Je Hee Lee ^1,2, Seon Young Choi ^1,2, Yoon-Seong Jeon ^1,2, Hye Ri Lee ¹, Eun Jin Kim ¹, Binh Minh Nguyen ³, Nguyen Tran Hien ³, M. Ansaruzzaman ⁴, M. Sirajul Islam ⁴, Nurul A. Bhuiyan ⁴, S.K. Niyogi ⁵, B.L. Sarkar ⁵, G. Balakrish Nair ⁵, Dae Shick Kim ⁶, Anna Lena Lopez ¹, Cecil Czerkinsky ¹, John D. Clemens ¹, Jongsik Chun ^1,2, Dong Wook Kim ¹; Journal of Microbiology 2009;47(6):783-788
DOI: https://doi.org/10.1007/s12275-009-0292-6
Published online: February 4, 2010

¹International Vaccine Institute, Seoul 151-919, Republic of Korea, ²School of Biological Sciences, Seoul National University, Seoul 151-747, Republic of Korea, ³National Institute of Hygiene and Epidemiology, Hanoi 10,000, Vietnam, ⁴International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka 1212, Bangladesh, ⁵National Institute of Cholera and Enteric Diseases, Kolkata 700 010, India, ⁶Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Republic of Korea¹International Vaccine Institute, Seoul 151-919, Republic of Korea, ²School of Biological Sciences, Seoul National University, Seoul 151-747, Republic of Korea, ³National Institute of Hygiene and Epidemiology, Hanoi 10,000, Vietnam, ⁴International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka 1212, Bangladesh, ⁵National Institute of Cholera and Enteric Diseases, Kolkata 700 010, India, ⁶Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Republic of Korea

Corresponding author: Dong Wook Kim , Tel: 82-2-881-1402,

Received: 22 September 2009 • Accepted: 5 October 2009

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Abstract

Analysis of the CTX prophage and RS1 element in hybrid and altered Vibrio cholera O1 strains showed two classifiable groups. Group I strains contain a tandem repeat of classical CTX prophage on the small chromosome. Strains in this group either contain no element(s) or an additional CTX prophage or RS1 element(s) on the large chromosome. Group II strains harbor RS1 and CTX prophage, which has an El Tor type rstR and classical ctxB on the large chromosome.

Keywords: V. cholerae; biotype; altered strain; hybrid strain; CTX prophage; RS1 element

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Classification of Hybrid and Altered Vibrio cholerae Strains by CTX Prophage and RS1 Element Structure

J. Microbiol. 2009;47(6):783-788. Published online February 4, 2010

DOI: https://doi.org/10.1007/s12275-009-0292-6

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