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Cry1Ac protoxin from Bacillus thuringiensis sp. kurstaki HD73 binds to surface proteins in the mouse small intestine.

Abstract：

:Bacillus thuringiensis (Bt), considered a safe insecticide, produces insecticidal proteins named Cry during sporulation, which possess exceptional immunological properties. In this work using an immunohistochemical test we demonstrated that Cry1Ac protoxin (pCry1Ac) binds to the mucosal surface of the mouse small intestine. Ligand blot assay allowed us to detect, under denaturing conditions, six pCry1Ac-binding polypeptides present in brush border membrane vesicles isolated from the small intestine. Moreover, this protein induced in situ temporal changes in the electrophysiological properties of the mouse jejunum. The data obtained indicate a possible interaction in vivo of Cry proteins with the animal bowel which could induce changes in the physiological status of the intestine.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Vázquez-Padrón RI,Gonzáles-Cabrera J,García-Tovar C,Neri-Bazan L,Lopéz-Revilla R,Hernández M,Moreno-Fierro L,de la Riva GA

doi

10.1006/bbrc.2000.2584

subject

Has Abstract

pub_date

2000-04-29 00:00:00

pages

54-8

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006291X00925841

journal_volume

271

pub_type

杂志文章

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