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Angela Regina Piovesan
Researcher at Pontifícia Universidade Católica do Rio Grande do Sul
Publications - 11
Citations - 272
Angela Regina Piovesan is an academic researcher from Pontifícia Universidade Católica do Rio Grande do Sul. The author has contributed to research in topics: Canavalia ensiformis & Urease. The author has an hindex of 5, co-authored 10 publications receiving 192 citations. Previous affiliations of Angela Regina Piovesan include Universidade Federal do Rio Grande do Sul & Allen Institute for Brain Science.
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Journal ArticleDOI
Ureases: Historical aspects, catalytic, and non-catalytic properties - A review.
Karine Kappaun,Angela Regina Piovesan,Angela Regina Piovesan,Célia R. Carlini,Rodrigo Ligabue-Braun +4 more
TL;DR: Urease (urea amidohydrolase, EC 3.5) is a nickel-containing enzyme produced by plants, fungi, and bacteria that catalyzes the hydrolysis of urea into ammonia and carbamate as discussed by the authors.
Journal ArticleDOI
Structure-function studies on jaburetox, a recombinant insecticidal peptide derived from jack bean (Canavalia ensiformis) urease.
Anne H.S. Martinelli,Karine Kappaun,Rodrigo Ligabue-Braun,Marina S. Defferrari,Angela Regina Piovesan,Fernanda Stanisçuaski,Diogo Ribeiro Demartini,Cháriston André Dal Belo,Carlos Gabriel Moreira de Almeida,Cristian Follmer,Hugo Verli,Célia R. Carlini,Célia R. Carlini,Giancarlo Pasquali +13 more
TL;DR: The N-terminal portion of the Jbtx carries the most important entomotoxic domain which is fully active in the absence of the β-hairpin motif, and represents a new type of insecticidal and membrane-active peptide.
Journal ArticleDOI
Stage-specific gut proteinases of the cotton stainer bug Dysdercus peruvianus: Role in the release of entomotoxic peptides from Canavalia ensiformis urease
Angela Regina Piovesan,Fernanda Stanisçuaski,Juliana Marco-Salvadori,Rafael Real-Guerra,Marina S. Defferrari,Célia R. Carlini +5 more
TL;DR: The view that a differential processing of ingested urease by the insects explains at least in part the lack of toxicity in adults is supported.
Journal ArticleDOI
Canavalia ensiformis urease, Jaburetox and derived peptides form ion channels in planar lipid bilayers.
Angela Regina Piovesan,Anne H.S. Martinelli,Rodrigo Ligabue-Braun,Jean-Louis Schwartz,Jean-Louis Schwartz,Célia R. Carlini +5 more
TL;DR: This is the first direct demonstration of the capacity of C. ensiformis urease and Jaburetox to permeabilize membranes through an ion channel-based mechanism, which may be a crucial step of their diverse biological activities, including host defense.
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Soluble Epoxide Hydrolase and Brain Cholesterol Metabolism.
Michelle Flores Domingues,Natalia Callai-Silva,Angela Regina Piovesan,Célia R. Carlini,Célia R. Carlini +4 more
TL;DR: Particular attention was given to the distribution and expression of sEH in the human brain, deepening into the enzyme’s phosphatase activity and its participation in brain cholesterol synthesis.