Occurrence and properties of proteases in plant latices.
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TLDR
This review focuses on the characterization of proteases found in latices of several plant families, and summarizes the known chemical and biological properties of the isolated proteases as well as their importance in pharmacology and toxicology.Abstract:
Proteases appear to play key roles in the regulation of biological processes in plants, such as the recognition of pathogens and pests and the induction of effective defence responses. On the other side these enzymes are able to activate protease-activated receptors (PARs) and in that way to act as agents with pharmacological and toxicological significance. An important source of plant proteases used in traditional medicine and industry is latex. Over 110 latices of different plant families are known to contain at least one proteolytic enzyme. Most of them belong to the cysteine or serine endopeptidases family and only one to the aspartatic endopeptidases family. This review focuses on the characterization of proteases found in latices of several plant families (Apocynaceae, Asclepiadaceae, Asteraceae, Caricaceae, Convolvulaceae, Euphorbiaceae, Moraceae), and summarizes the known chemical and biological properties of the isolated proteases as well as their importance in pharmacology and toxicology.read more
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References
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The Involvement of Cysteine Proteases and Protease Inhibitor Genes in the Regulation of Programmed Cell Death in Plants
TL;DR: It is shown that in soybean cells, PCD-activating oxidative stress induced a set of cysteine proteases, and a new role for proteinase inhibitor genes as modulators of PCD in plants is proposed.
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Plant proteases, protein degradation, and oxidative stress: role of peroxisomes
José M. Palma,Luisa M. Sandalio,F. Javier Corpas,María C. Romero-Puertas,Iva McCarthy,Luis A. del Río +5 more
TL;DR: The presence of exo- and endoproteolytic activity in plant peroxisomes is analyzed, and the role of peroxISomal proteases in different physiological events that take place under oxidative stress situations is discussed.
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Multifunctional role of plant cysteine proteinases.
M. Grudkowska,Barbara Zagdańska +1 more
TL;DR: In this review an attempt was undertaken to illustrate the multiple roles of cysteine proteinases and the mechanisms underlying their action.
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Papain protects papaya trees from herbivorous insects: role of cysteine proteases in latex.
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