En el presente trabajo se ha aislado y caracterizado parcialmente una insecto toxina del veneno del escorpión Centruroides margaritatus. La separación se hizo utilizando una columna de CM Sephadex C-25 con buffer acetato de amonio 0,05 M a pH 7,0.
La insecto toxina aislada es de naturaleza básica y por PAGE-SDS muestra dos bandas proteicas de 6.6 y 5,2 kDa. Además no posee actividad proteolítica ni fosfolipásica.
Por otro lado, al evaluar su toxicidad en insectos, resultó ser letal a Schistocerca piceifrons peruviana, Grillus sp. y Periplaneta americana en dosis de 1, 2 y 4 mg de proteína, respectivamente.
Este es el primer aislamiento y caracterización bioquímica de una insecto toxina de veneno de escorpión en el Perú / In this work an insect toxin scorpion was isolated and partially characterized from the venom of Centruroides margaritatus. It was isolated using ion exchange CM Sephadex C-25 column chromatography with 0,05M ammonium acetate buffer at pH 7,0.
The isolated insect toxin is a basic protein and by PAGE-SDS showed two protein bands of 6.6 and 5,2 kDa. In addition has no proteolytic and phospholipase activity.
The toxicity activity showed that is highly toxic in insects. Schistoocerca piceifrons peruviana, Grillus sp. and Periplaneta americana was killed with 1, 2 and 4 mg of protein, respectively.
This is the first isolation and biochemical characterization of an insect toxin from scorpion venom in Perú.
| Identifer | oai:union.ndltd.org:Cybertesis/oai:cybertesis.unmsm.edu.pe:cybertesis/1096 |
| Date | January 2005 |
| Creators | Velásquez Ramos, Luz Dora |
| Contributors | Escobar, Enrique |
| Publisher | Universidad Nacional Mayor de San Marcos |
| Source Sets | Universidad Nacional Mayor de San Marcos - SISBIB PERU |
| Language | Spanish |
| Detected Language | English |
| Type | info:eu-repo/semantics/bacherlorThesis |
| Source | Universidad Nacional Mayor de San Marcos, Repositorio de Tesis - UNMSM |
| Rights | info:eu-repo/semantics/openAccess |
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