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J Genomics. 2017 Jul 1;5:71-74. doi: 10.7150/jgen.20915. eCollection 2017.

Complete Genome Sequence and Comparative Genomics of a Streptococcus pyogenes emm3 Strain M3-b isolated from a Japanese Patient with Streptococcal Toxic Shock Syndrome.

Author information

1
Pathogenic Microbe Laboratory.
2
Department of Infectious Diseases, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan.

Abstract

Epidemiologic typing of Streptococcus pyogenes (GAS) is frequently based on the genotype of the emm gene, which encodes M/Emm protein. In this study, the complete genome sequence of GAS emm3 strain M3-b, isolated from a patient with streptococcal toxic shock syndrome (STSS), was determined. This strain exhibited 99% identity with other complete genome sequences of emm3 strains MGAS315, SSI-1, and STAB902. The complete genomes of five additional strains isolated from Japanese patients with and without STSS were also sequences. Maximum-likelihood phylogenetic analysis showed that strains M3-b, M3-e, and SSI-1, all which were isolated from STSS patients, were relatively close.

KEYWORDS:

Streptococcus pyogenes; complete genome sequence; streptococcal toxic shock syndrome.

Conflict of interest statement

Competing Interests: The authors have declared that no competing interest exists.

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