Highly divergent actins from Karyorelictean, Heterotrich, and Litostome Ciliates

Oanh T.P. Kim, Kei Yura, G. O. Nobuhiro, Terue Harumoto*

*この研究の対応する著者

研究成果: Article査読

12 被引用数 (Scopus)

抄録

We have cloned, sequenced, and characterized cDNA of actins from five ciliate species of three different classes of the phylum Ciliophora: Karyorelictea (Loxodes striatus), Heterotrichea (Blepharisma japonicum, Blepharisma musculus), and Litostomatea (Didinium nasutum, Dileptus margaritifer). Loxodes striatus uses UGA as the stop codon and has numerous in-frame UAA and UAG, which are translated into glutamine. The other four species use UAA as the stop codon and have no in-frame UAG nor UGA. The putative amino acid sequences of the newly determined actin genes were found to be highly divergent as expected from previous findings of other ciliate actins. These sequences were also highly divergent from other ciliate actins, indicating that actin genes are highly diverse even within the phylum Ciliophora. Phylogenetic analysis showed high evolutionary rate of ciliate actins. Our results suggest that the evolutionary rate was accelerated because of the differences in molecular interactions.

本文言語English
ページ(範囲)227-233
ページ数7
ジャーナルJournal of Eukaryotic Microbiology
51
2
DOI
出版ステータスPublished - 2004 3月 1
外部発表はい

ASJC Scopus subject areas

  • 微生物学

フィンガープリント

「Highly divergent actins from Karyorelictean, Heterotrich, and Litostome Ciliates」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル