Search

Your search keyword '"Matsumoto, Masakado"' showing total 4 results
Start Over Author "Matsumoto, Masakado" Journal fems microbiology letters
4 results on '"Matsumoto, Masakado"'

3. Identification of a Shiga-toxin type I variant containing an IS1203-like element, from Shiga-toxin producing Escherichia coli O157:H7

Author

Suzuki, Masahiro, Kondo, Fumio, Ito, Yuko, Matsumoto, Masakado, Hata, Mami, Oka, Hisao, Takahashi, Masao, and Sakae, Kenji

Subjects
VEROCYTOTOXINS, ESCHERICHIA coli, GENETIC transcription, TOXINS
Abstract

We found two Shiga toxin producing Escherichia coli O157:H7 strains isolated from humans carrying the stx1 gene with an IS1203-like element (designated as IS1203v1). The IS1203v1 was inserted into the coding region of the A subunit 7 bp upstream from the TGA termination codon, resulting in a loss of two amino acid residues (Ser–Ser) from its C terminus. Toxicity of the Stx1 was confirmed by Vero cell assay. IS1203v1 hardly affected the stx1 gene in either its expression or the toxicity of its product. [Copyright &y& Elsevier]

Published
2004
Full Text
View/download PDF

4. Prevalence of the speA2and speA3alleles in Streptococcus pyogenesisolated from TSLS patients in Japan

Author

Matsumoto, Masakado, Murai, Teiko, Ichiyama, Satoshi, Saito, Makoto, Arakawa, Yoshichika, and Ohta, Michio

Abstract

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. pyogenesisolates associated with TSLS, 69% were M‐types 1 and 3. This study focused on speAalleles 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 speAallele in all of these isolates. Consistent with other reports, these M‐type 1 and 3 isolates carried the speA2and speA3alleles, respectively. Our results indicate that these two speAalleles, which were prevalent worldwidely have been disseminating in Japan.

Published
1997
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results