In situ localization of the 60 k protein of Helicobacter pylori, which belongs to the family of heat shock proteins, by immuno-electron microscopy.
Zentralbl Bakteriol
; 280(1-2): 73-85, 1993 Sep.
Article
em En
| MEDLINE
| ID: mdl-8280960
ABSTRACT
The groEl homologue of Helicobacter pylori was isolated and characterized by means of immunoelectron microscopy, after cryosectioning. The 60 k protein was isolated from Helicobacter pylori by treatment of the cells with 2-butanol and purified by anion exchange chromatography. The native molecular weight of the 60 k protein was estimated to be 420 k by size exclusion chromatography. The purified 60 k protein showed the typical rotational symmetry of chaperonins when analyzed by electron microscopy. Ultrathin sections of Helicobacter pylori were immunostained by a polyclonal antibody directed against the hsp-65 of Mycobacterium tuberculosis. The label revealed a clustered localization of the 60 k protein on the cell surface as well as in the periplasmic space.
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Coleções:
01-internacional
Contexto em Saúde:
3_ND
Base de dados:
MEDLINE
Assunto principal:
Proteínas de Bactérias
/
Helicobacter pylori
/
Chaperoninas
/
Proteínas de Choque Térmico
Idioma:
En
Revista:
Zentralbl Bakteriol
Ano de publicação:
1993
Tipo de documento:
Article