Isolation and partial characterization of a protein fraction from the opossum (Didelphis marsupialis) serum, with protecting property against the Bothrops jararaca snake venom.
An Acad Bras Cienc
; 58(1): 155-62, 1986.
Article
em En
| MEDLINE
| ID: mdl-3767145
Two separated methods were used to purify a fraction from the opossum (Didelphis marsupialis) serum able to protect mice against Bothrops jararaca venom. The first of them included an initial batch DEAE-Cellulose ion-exchange of the serum, followed by another ion-exchange chromatography on a Carboxymethyl Sepharose column. The second method was a column ion-exchange chromatography on DEAE-Sephacel. These techniques allowed to obtain a protein fraction which resulted homogeneous in cellulose acetate and conventional polyacrylamide gel electrophoresis. The obtained protein fraction proved to be a glycoprotein according to the positive staining with periodic acid Schiff. Sodium dodecylsulfate polyacrylamide gel electrophoresis of the B-mercaptoethanol-reduced fraction showed heterogeneity and allowed to estimate molecular weights in the range of 42,000 to 58,000 daltons. The obtained serum fraction could effectively block the lethal effect of B. jararaca venom when jointly injected to laboratory mice by peritoneal route.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Gambás
/
Glicoproteínas
/
Venenos de Crotalídeos
Limite:
Animals
Idioma:
En
Revista:
An Acad Bras Cienc
Ano de publicação:
1986
Tipo de documento:
Article
País de publicação:
Brasil