Specific serodiagnosis of visceral leishmaniasis using a Leishmania donovani antigen identified by expression cloning.
Mol Biochem Parasitol
; 30(3): 259-70, 1988 Sep.
Article
em En
| MEDLINE
| ID: mdl-2972929
ABSTRACT
A lambda gt11 expression library was constructed using mRNA from the promastigote form of Leishmania donovani (African isolate MHOM/ET/67/HU3). The library was screened with serum obtained from a patient who contracted visceral leishmaniasis in the Sudan. Several cDNA clones which expressed beta-galactosidase/L. donovani antigen fusion proteins were isolated. One of these clones corresponded to a 60 kDa membrane-associated antigen. By a Western blot assay antibodies against the fusion protein were detected universally in the sera of visceral leishmaniasis patients. They were not detected in sera from patients with cutaneous leishmaniasis or other parasitic protozoan infections. The gene coding for this antigen was specific to the genus Leishmania as judged by DNA hybridisation, and its chromosomal location was conserved. A 20 kb mRNA was detected on Northern blots of promastigote RNA.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Leishmaniose Visceral
/
Antígenos de Protozoários
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Mol Biochem Parasitol
Ano de publicação:
1988
Tipo de documento:
Article
País de afiliação:
Reino Unido