Prevalence of the speA2 and speA3 alleles in Streptococcus pyogenes isolated from TSLS patients in Japan.
More than 100 cases have been identified as streptococcal toxic shock-like syndrome (TSLS) in Japan, since the first case was reported in 1993. Of 26 S. pyogenes isolates associated with TSLS, 69% were M-types 1 and 3. This study focused on speA alleles which were carried by all M-type 1 and 3 isolates and isolates of some other M-types, irrespective of sources. We sequenced the nucleotides of the relevant region of the speA allele in all of these isolates. Consistent with other reports, these M-type 1 and 3 isolates carried the speA2 and speA3 alleles, respectively. Our results indicate that these two speA alleles, which were prevalent world-wide have been disseminating in Japan.
Matsumoto
M
M
Department of Bacteriology, Nagoya University School of Medicine, Aichi, Japan.
Murai
T
T
Ichiyama
S
S
Saito
M
M
Arakawa
Y
Y
Ohta
M
M
D000483:Alleles; D000595:Amino Acid Sequence; D001426:Bacterial Proteins; D001483:Base Sequence; D005098:Exotoxins / Q000145:classification / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D005798:Genes, Bacterial; D005838:Genotype; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D008565:Membrane Proteins; D008969:Molecular Sequence Data; D016415:Sequence Alignment; D017385:Sequence Homology; D012772:Shock, Septic / Q000453:epidemiology / Q000382:microbiology*; D013297:Streptococcus pyogenes / Q000235:genetics* / Q000302:isolation & purification
D001426:Bacterial Proteins; D005098:Exotoxins; D008565:Membrane Proteins; C117980:SpeA protein, Streptococcus pyogenes; C027951:erythrogenic toxin