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ChlH, the H subunit of the Mg-chelatase, is an anti-sigma factor for SigE in Synechocystis sp. PCC 6803

Autor: Sousuke Imamura, Shusei Sato, Masahiko Ikeuchi, Asako Seki, Takashi Osanai, Kan Tanaka, Satoshi Tabata, Masahiko Imashimizu, Munehiko Asayama

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America. 106(No. 16):6860-6865

Although regulation of sigma factors has been intensively investigated, anti-sigma factors have not been identified in oxygenic photosynthetic organisms. A previous study suggested that the sigma factor, SigE, of the cyanobacterium Synechocystis sp.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58996e3f11141b343f9c54492cbab56e
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100775650

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Induction of a group 2 sigma factor, RPOD3, by high light and the underlying mechanism in Synechococcus elongatus PCC 7942

Autor: Hideo Iwasaki, Yuki Akimoto, Asako Seki, Mitsumasa Hanaoka, Susumu Masuda, Kan Tanaka

Publikováno v: Journal of Biological Chemistry. 282(No. 51):36887-36894

Among the sigma70 family bacterial sigma factors, group 2 sigma factors have similar promoter recognition specificity to group 1 (principal) sigma factors and express and function under specific environmental and physiological conditions. In general,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::572cb5a8e8c6d4479d8da5bb45454c5a
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100775671

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Light-responsive transcriptional regulation of the suf promoters involved in cyanobacterium Synechocystis sp PCC6803Fe-Scluster biogenesis

Autor: Kan Tanaka, Hiroyuki Takahashi, Takayuki Nakano, Masahiko Ikeuchi, Koji Matsumoto, Asako Seki

Publikováno v: Febs Letters. 580(No. 21):5044-5048

The widely conserved SUF system is involved in Fe–S cluster repair and biogenesis. In cyanobacterium Synechocystis sp. PCC 6803, transcription of the sufBCDS operon encoding the Suf complex is negatively regulated by the upstream sufR gene encoded

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71771fc46e6c2ab04624279f7a64fbd2
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100775058

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[A case of hepatocellular carcinoma complicated with Caroli's disease]

Autor: Masashi, Ijima, Ryuya, Shimoda, Kenji, Katakai, Asako, Seki, Hirokazu, Oshimoto, Jun, Masuda, Nobuhiro, Morinaga, Yutaka, Suzuki, Satoru, Kakizaki, Taido, Arai

Publikováno v: Nihon Shokakibyo Gakkai zasshi = The Japanese journal of gastro-enterology. 107(9)

A 29-year-old man was admitted with right hypochondralgia and fever. Markedly dilated bile ducts were observed, mainly in the right lobe of the liver. Based on both the clinical findings and imaging, we diagnosed Caroli's disease and choledochal cyst

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::bead51bda1780f509ea20b2cc31da0fb
https://pubmed.ncbi.nlm.nih.gov/20827046

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ChemInform Abstract: PF1163A and B, New Antifungal Antibiotics Produced by Penicillium sp. Part 1. Taxonomy of Producing Strain, Fermentation, Isolation, and Biological Activities

Autor: Hiroshi Nose, Shigeru Hoshiko, Takashi Shomura, Ayako Hosoya, Takashi Yaguchi, Toru Sasaki, Asako Seki

Publikováno v: ChemInform. 31

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b042abc364ab299deb56ff9d16826ef2
https://doi.org/10.1002/chin.200026217

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PF1163A, a Novel Antifungal Agent, Inhibit Ergosterol Biosynthesis at C-4 Sterol Methyl Oxidase

Autor: Shigeru Hoshiko, Asako Seki, Hideki Fushimi, Hiroomi Watabe, Hiroshi Nose, Toru Sasaki

Publikováno v: ChemInform. 34

PF1163A and B are a pair of antifungal agents isolated from a fermentation broth of Penicillium sp. PF1163A inhibited ergosterol synthesis in Saccharomyces cerevisiae, resulting in an accumulation of 4,4-dimethylzymosterol and a decrease of ergostero

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a088360f209defdec620328e9c88ea6
https://doi.org/10.1002/chin.200317216

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PF1163A and B, new antifungal antibiotics produced by Penicillium sp. I. Taxonomy of producing strain, fermentation, isolation and biological activities

Autor: Takashi Shomura, Shigeru Hoshiko, Takashi Yaguchi, Toru Sasaki, Ayako Hosoya, Hiroshi Nose, Asako Seki

Publikováno v: The Journal of antibiotics. 53(1)

Two novel antifungal antibiotics, PF1163A and B, were isolated from the fermentation broth of Penicillium sp. They were purified from the solid cultures of rice media using ethyl acetate extraction, silica gel and Sephadex LH-20 column chromatographi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f48901740bf12dfe2ac06f8eaaba8bec
https://pubmed.ncbi.nlm.nih.gov/10724005

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The cyanobacterial principal sigma factor region 1.1 is involved in DNA-binding in the free form and in transcription activity as holoenzyme

Autor: Asako Seki, Kan Tanaka, Mitsumasa Hanaoka, Masahiko Imashimizu, Katsuhiko S. Murakami

Publikováno v: FEBS Letters. (14):3439-3444

Cyanobacterial principal sigma factor, sigma(A), includes a specifically conserved cluster of basic amino acids in the amino-terminal extension called region 1.1. We found that the sigma(A) in a thermophilic cyanobacterium Thermosynechococcus elongat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15c6df93d700d13c507f3655b37a3ce7

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