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A single-step purification of bothropstoxin-1 BJMBR
Spencer,P.J.; Aird,S.D.; Boni-Mitake,M.; Nascimento,N.; Rogero,J.R..
Bothrops venoms are complex mixtures of components with a wide range of biological activities. Among these substances, myotoxins have been investigated by several groups. Bothropstoxin-1 (Bthtx-1) is a phospholipase A2-like basic myotoxin from Bothrops jararacussu. The purification of this component involves two chromatographic steps. Although providing a pure material, the association of these two steps is time consuming and a single-step method using high performance chromatography media would be useful. In the present study, we describe a single-step purification method for Bthtx-1. Bothrops jararacussu venom was dissolved in 1 ml buffer. After centrifugation, the supernatant was injected into a Resource-S cation exchange column connected to an FPLC...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Myotoxins; Purification; Chromatography; Bothrops jararacussu; Bothropstoxin-1.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000900004
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Study of irradiated bothropstoxin-1 with60Co gamma rays: immune system behavior J. Venom. Anim. Toxins incl. Trop. Dis.
Caproni,P; Baptista,JA; Almeida,TL de; Passos,LAC; Nascimento,N.
Ionizing radiation has been successfully employed to modify the immunological properties of biomolecules. Very promising results were obtained when crude animal venoms, as well as isolated toxins, were treated with 60Co gamma rays, yielding toxoids with good immunogenicity. The achievement of modified antigens with lower toxicity and preserved or improved immunogenicity can be very useful. Ionizing radiation has already been proven to be a powerful tool to attenuate snake venom toxicity without affecting, and even increasing, their immunogenic properties. However, little is known about the modifications that irradiated molecules undergo and even less about the immunological response that such antigens elicit. In the present work, we investigated the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Immunology; Ionizing radiation; Gamma rays; Bothropstoxin-1.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000200005
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