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Article . 2010
License: CC BY NC SA
Data sources: CONICET Digital
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MpI, un nuevo inhibidor peptídico de tripsina y quimotripsina

Authors: Lazza, Cristian Martin; Caffini, Nestor Oscar; Lopez, Laura Maria Isabel;

MpI, un nuevo inhibidor peptídico de tripsina y quimotripsina

Abstract

A partir de semillas de Maclura pomifera (Moraceae) se obtuvo un extracto con actividad inhibitoria de tripsina y quimotripsina que fue parcialmente purificado (1,4 veces) por precipitación acetónica. A partir de dicha preparación empleando cromatografía de exclusión molecular seguida de intercambio iónico se logró purificar un péptido con actividad inhibitoria de tripsina y quimotripsina; los factores de purificación fueron muy elevados: 112 y 109, respectivamente, para las enzimas antes mencionadas. Este nuevo inhibidor, denominado MpI, resultó ser homogéneo por SDS-Tricine PAGE (11 kDa) y por IEF (pI = 5.2). Se determinó la IC50 para tripsina (0,17 microg/ml) y para quimotripsina (0,7 microg/ml). El rendimiento en proteínas fue de 0,09 mg/g semillas.

Fil: Lopez, Laura Maria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; Argentina

Fil: Lazza, Cristian Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; Argentina

Fil: Caffini, Nestor Oscar. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; Argentina

Country
Argentina
Keywords

QUIMOTRIPSINA, https://purl.org/becyt/ford/2.9, TRIPSINA, INHIBIDOR, MACLURA POMIFERA, https://purl.org/becyt/ford/2

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green