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  1. 010 学術雑誌論文
  2. 渡辺, 正勝 / WATANABE, Masakatsu

The origin of photoactivated adenylyl cyclase (PAC), the Euglena blue-light receptor: Phylogenetic analysis of orthologues of PAC subunits from several euglenoids and trypanosome-type adenylyl cyclases from Euglena gracilis

https://ir.soken.ac.jp/records/3887
https://ir.soken.ac.jp/records/3887
e65bb380-a079-4c66-82f7-1369af9c66a7
Item type 学術雑誌論文 / Journal Article(1)
公開日 2013-08-13
タイトル
タイトル The origin of photoactivated adenylyl cyclase (PAC), the Euglena blue-light receptor: Phylogenetic analysis of orthologues of PAC subunits from several euglenoids and trypanosome-type adenylyl cyclases from Euglena gracilis
タイトル
タイトル The origin of photoactivated adenylyl cyclase (PAC), the Euglena blue-light receptor: Phylogenetic analysis of orthologues of PAC subunits from several euglenoids and trypanosome-type adenylyl cyclases from Euglena gracilis
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 KOUMURA, Yoshiko

× KOUMURA, Yoshiko

KOUMURA, Yoshiko

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SUZUKI, Takeshi

× SUZUKI, Takeshi

SUZUKI, Takeshi

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YOSHIKAWA, Shinya

× YOSHIKAWA, Shinya

YOSHIKAWA, Shinya

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WATANABE, Masakatsu

× WATANABE, Masakatsu

WATANABE, Masakatsu

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ISEKI, Mineo

× ISEKI, Mineo

ISEKI, Mineo

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著者別名 渡辺, 正勝

× 渡辺, 正勝

渡辺, 正勝

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抄録
内容記述タイプ Abstract
内容記述 Photoactivated adenylyl cyclase (PAC) is the blue-light receptor flavoprotein recently identified as a photoreceptor for photoavoidance of the unicellular flagellate, Euglena gracilis. To gain an insight into the evolution of this unique protein, similar sequences were searched for in several euglenoids by reverse transcriptase-polymerase chain reaction (RT-PCR) using degenerate primers. Two similar transcripts were detected in each of the four phototrophic euglenoids, Euglena stellata, Colacium sideropus, Eutreptia viridis, Eutreptiella gymnastica, and in an osmotrophic (i.e., obtaining nutrients by absorption) one, Khawkinea quartana, but not in a phagotrophic euglenoid, Petalomonas cantuscygni. Each of them seemed to be orthologous to PACα and PACβ, respectively, and had the same domain structure as PAC subunits each of which is composed of two flavin binding domains, F1 and F2, each followed by an adenylyl cyclase catalytic domain, C1 and C2, respectively. This fact implies that they constitute a functional photoactivated adenylyl cyclase like PAC. Phylogenetic analysis of the adenylyl cyclase catalytic domains revealed that they belong to a bacterial cluster, not to a trypanosomal one. In addition, two trypanosome-type adenylyl cyclases were discovered in E. gracilis. In contrast to PAC, deduced amino acid sequences of the trypanosome-type adenylyl cyclases indicated that they are integral membrane proteins with a membrane spanning region at the midpoint of them, followed by an adenylyl cyclase catalytic domain which seems cytoplasmic. Overall, we propose that PAC might have been transferred to euglenoids on the occasion of secondary endosymbiosis.
書誌情報 Photochemical and Photobiological Sciences
en : Photochemical and Photobiological Sciences

巻 3, 号 6, p. 580-586, 発行日 2004-06
出版者
出版者 Royal Society of Chemistry
ISSN
収録物識別子タイプ ISSN
収録物識別子 1474905X
PubMed番号
識別子タイプ PMID
関連識別子 15170488
DOI
識別子タイプ DOI
関連識別子 http://doi.org/10.1039/b316075k
関連名称 10.1039/b316075k
権利
権利情報 © The Royal Society of Chemistry and Owner Societies 2004
関連サイト
識別子タイプ URI
関連識別子 http://www.rsc.org/AboutUs/Copyright/LicencetoPublishforjournals.asp
関連名称 Copyright
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内容記述タイプ Other
内容記述 application/pdf
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