A Cysteine Endopeptidase (“Dionain”) Is Involved in the Digestive Fluid of Dionaea muscipula (Venus’s Fly-trap)

Kenji TAKAHASHI; Takehiro SUZUKI; Wataru NISHII; Keiko KUBOTA; Chiaki SHIBATA; Toshiaki ISOBE; Naoshi DOHMAE

doi:10.1271/bbb.100546

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A Cysteine Endopeptidase (“Dionain”) Is Involved in the Digestive Fluid of Dionaea muscipula (Venus’s Fly-trap)

Kenji TAKAHASHI, Takehiro SUZUKI, Wataru NISHII, Keiko KUBOTA, Chiaki SHIBATA, Toshiaki ISOBE, Naoshi DOHMAE

著者情報

キーワード: cysteine endopeptidase, digestive fluid, Dionaea muscipula (Venus’s flytrap), dionain, partial amino acid sequence

ジャーナルフリー早期公開

論文ID: 100546

DOI https://doi.org/10.1271/bbb.100546

この記事には本公開記事があります。

The final version of this article is now available: Vol. 75 (2011) , No. 2 p.346

詳細

抄録

The carnivorous plant Dionaea muscipula (Venus’s flytrap) secretes proteinases into the digestive fluid to digest prey proteins. In this study, we obtained evidence that the digestive fluid contains a cysteine endopeptidase, presumably belonging to the papain family, through inhibitor studies and partial amino acid sequencing of the major SDS–PAGE band protein. The name “dionain” is proposed for the enzyme.

責任著者(Corresponding author)

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