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

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 a...

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Veröffentlicht in:	Bioscience, biotechnology, and biochemistry biotechnology, and biochemistry, 2011, Vol.75 (2), p.346-348
Hauptverfasser:	TAKAHASHI, Kenji, SUZUKI, Takehiro, NISHII, Wataru, KUBOTA, Keiko, SHIBATA, Chiaki, ISOBE, Toshiaki, DOHMAE, Naoshi
Format:	Artikel
Sprache:	eng
Schlagworte:	Amino Acid Sequence Biological and medical sciences Coumarins - pharmacology cysteine endopeptidase Cysteine Endopeptidases - chemistry Cysteine Endopeptidases - metabolism Cysteine Proteinase Inhibitors - pharmacology Digestion digestive fluid Dionaea muscipula Dionaea muscipula (Venus's flytrap) dionain Dipeptides - pharmacology Droseraceae - enzymology Droseraceae - physiology Fundamental and applied biological sciences. Psychology Hydrogen-Ion Concentration Molecular Sequence Data partial amino acid sequence
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Zusammenfassung:	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.
ISSN:	0916-8451 1347-6947 1347-6947
DOI:	10.1271/bbb.100546