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An. acad. bras. ciênc ; 81(3): 615-621, Sept. 2009. ilus, tab
Article in English | LILACS | ID: lil-523985

ABSTRACT

Obtained from leguminous seeds, various plant proteins inhibit animal proteinases, including human, and can be considered for the development of compounds with biological activity. Inhibitors from the Bowman-Birk and plant Kunitz-type family have been characterized by proteinase specificity, primary structure and reactive site. Our group mostly studies the genus Bauhinia, mainly the species bauhinioides, rufa, ungulata and variegata. In some species, more than one inhibitor was characterized, exhibiting different properties. Although proteins from this group share high structural similarity, they present differences in proteinase inhibition, explored in studies using diverse biological models.


Obtidas de sementes leguminosas, várias proteínas inibem proteinases de origem animal, incluindo humanas, e podem ser consideradas para o desenvolvimento de compostos com atividade biológica. Inibidores da família Bowman-Birk e da família Kunitz vegetal tem sido caracterizados em relação a especificidade para proteinase, estrutura primária e sitio reativo. O nosso grupo majoritariamente vem estudando o gênero Bauhinia, principalmente as espécies bauhinioides, rufa, ungulatae variegata. Em algumas espécies, mais de um inibidor com propriedades diferentes foi caracterizado. Embora tais proteínas apresentem alta similaridade estrutural, diferem quanto à inibição de proteinases, e foram exploradas em estudos utilizando diversos modelos biológicos.


Subject(s)
Animals , Humans , Fabaceae/chemistry , Protease Inhibitors/pharmacology , Chymotrypsin/antagonists & inhibitors , Fabaceae/classification , Peptides/isolation & purification , Peptides/pharmacology , Plant Proteins/isolation & purification , Plant Proteins/pharmacology , Plasma Kallikrein/antagonists & inhibitors , Protease Inhibitors/isolation & purification , Seeds/chemistry , Seeds/classification , Trypsin Inhibitor, Bowman-Birk Soybean/isolation & purification , Trypsin Inhibitor, Bowman-Birk Soybean/pharmacology
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