Expression, purification and binding to the receptor of human insulin-like growth factor II.
Biochim Biophys Acta
; 1203(1): 155-61, 1993 Nov 10.
Article
em En
| MEDLINE
| ID: mdl-8218385
ABSTRACT
Human insulin-like growth factor II (IGF-II) was expressed as a fused protein with 14 additive amino acids in Escherichia coli with a high yield by an expression system using T7 RNA polymerase. Purification of the expressed protein was simply performed using only differential ultrafiltrations, giving a homogeneous preparation upon polyacrylamide gel electrophoresis and high-performance liquid chromatography. The expressed peptide was reacted with a monoclonal antibody raised against native IGF-II on a blotted membrane. Furthermore, the peptide was bound to IGF-II receptor in solubilized rat fetus membrane, though the affinity was slightly inferior to that of native IGF-II. In addition, fusion IGF-II immobilized on a gel matrix was useful for one-step purification of the IGF-II receptor with a high yield from solubilized rat fetus membranes.
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Base de dados:
MEDLINE
Assunto principal:
Fator de Crescimento Insulin-Like II
/
Receptor IGF Tipo 2
Limite:
Animals
/
Humans
Idioma:
En
Ano de publicação:
1993
Tipo de documento:
Article