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Kayo Okumura

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Citations 257
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Recent Articles
11.
Okumura K, Takamatsu D, Okura M
Microbiol Resour Announc . 2019 May; 8(21). PMID: 31123010
attacks honeybee larvae, causing European foulbrood. Based on their virulence toward larvae, isolates were classified into three types, highly virulent, moderately virulent, and avirulent. We herein performed whole-genome sequencing of...
12.
Ogura K, Okumura K, Shimizu Y, Kirikae T, Miyoshi-Akiyama T
Front Microbiol . 2018 Oct; 9:2128. PMID: 30298057
subsp. equisimilis (SDSE) causes severe invasive diseases such as streptococcal toxic shock syndrome, similar to that caused by (GAS). Invasive SDSE infections are increasing, particularly among patients with diabetes mellitus....
13.
Okumura K, Takamatsu D, Okura M
Genome Announc . 2018 Jun; 6(23). PMID: 29880590
is the causative agent of European foulbrood, and its isolates were believed to be remarkably genetically homogeneous. However, recent epidemiological and pathogenic studies have shown this pathogen to be more...
14.
Yamasaki E, Sakamoto R, Matsumoto T, Maiti B, Okumura K, Morimatsu F, et al.
Methods Mol Biol . 2017 May; 1600:1-7. PMID: 28478552
As cholera toxin (CT) is responsible for most of the symptoms induced by Vibrio cholerae O1 or O139 infection, detection of CT is an important biomarker for diagnosis of the...
15.
Watanabe S, Matsumura K, Iwai H, Funatogawa K, Haishima Y, Fukui C, et al.
Infect Immun . 2016 Jun; 84(8):2264-2273. PMID: 27245411
Mycobacterium tuberculosis contains a single rRNA operon that encodes targets for antituberculosis agents, including kanamycin. To date, only four mutations in the kanamycin binding sites of 16S rRNA have been...
16.
Okumura K, Kato M, Kirikae T, Kayano M, Miyoshi-Akiyama T
BMC Genomics . 2015 Apr; 16:218. PMID: 25879806
Background: Although Mycobacterium tuberculosis isolates are consisted of several different lineages and the epidemiology analyses are usually assessed relative to a particular reference genome, M. tuberculosis H37Rv, which might introduce...
17.
Arai R, Miyoshi-Akiyama T, Okumura K, Morinaga Y, Wu M, Sugimura Y, et al.
J Vet Med Sci . 2013 Dec; 76(4):491-8. PMID: 24334815
Melissococcus plutonius is the causative agent of an important honeybee disease, European foulbrood (EFB). In addition to M. plutonius strains with typical characteristics (typical M. plutonius), we recently reported the...
18.
Takamatsu D, Arai R, Miyoshi-Akiyama T, Okumura K, Okura M, Kirikae T, et al.
Appl Environ Microbiol . 2013 Apr; 79(12):3882-6. PMID: 23584776
Melissococcus plutonius is a fastidious honeybee pathogen, and the addition of KH(2)PO(4) to culture medium is required for its growth. Using genome sequences and a newly developed vector, we showed...
19.
Okumura K, Shimomura Y, Murayama S, Yagi J, Ubukata K, Kirikae T, et al.
BMC Genomics . 2012 Aug; 13:404. PMID: 22900646
Background: Streptococcus pyogenes (GAS) harbors several superantigens (SAgs) in the prophage region of its genome, although speG and smez are not located in this region. The diversity of SAgs is...
20.
Okumura K, Arai R, Okura M, Kirikae T, Takamatsu D, Osaki M, et al.
J Bacteriol . 2012 May; 194(11):3014. PMID: 22582373
We report the complete genome sequence of Melissococcus plutonius DAT561, which is a causative agent of European foulbrood. M. plutonius DAT561 is a representative of nonfastidious strains isolated in Japan....