Soluble expression, purification and characterization of Bm K IT in Escherichia coli by intein-mediated system / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 989-994, 2007.
Artículo
en Chino
| WPRIM
| ID: wpr-276174
ABSTRACT
To produce recombinant Buthus martensii Karsch insect toxin (BmK IT), BmK IT cDNA which fused a hexahistidine sequence at the C-terminus by PCR was inserted into pTWIN1 expression vector fused in frame with an upstream Ssp DnaB intein gene. The expression plasmid was transformed into E. coli BL21 (DE3) strain and protein expression was induced by IPTG. The CBD-Intein-BmK IT(his6) fusion protein was purified from cell lysates using Ni-NTA resin affinity chromatography. The intein was removed from fusion protein by on-column intein-mediated cleavage. BmK IT(his6) was purified through Superdex 75 gel chromatography to more than 95% homogeneity. The purified protein has both correct secondary structure and insecticidal activity.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Oligopéptidos
/
Venenos de Escorpión
/
Transformación Genética
/
Proteínas Recombinantes de Fusión
/
Cromatografía de Afinidad
/
Cromatografía en Gel
/
Inteínas
/
Escherichia coli
/
Genética
/
Histidina
Límite:
Animales
Idioma:
Chino
Revista:
Chinese Journal of Biotechnology
Año:
2007
Tipo del documento:
Artículo
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