Evaluation of Recombinant Dense Granule Antigen 7 (GRA7) of Toxoplasma gondii for Detection of Immunoglobulin G Antibodies and Analysis of a Major Antigenic Domain
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چکیده
منابع مشابه
Evaluation of recombinant dense granule antigen 7 (GRA7) of Toxoplasma gondii for detection of immunoglobulin G antibodies and analysis of a major antigenic domain.
Dense granule protein 7 (GRA7) of Toxoplasma gondii was expressed in Escherichia coli as a fusion protein. The leader peptide contained a 25-amino-acid mouse tumor necrosis factor fragment and six histidyl residues. After purification by metal chelate affinity chromatography, the antigen was evaluated in an enzyme-linked immunosorbent assay for detection of immunoglobulin G (IgG). For two sets ...
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Background: Dense granule antigens (GRA antigens) of Toxoplasma gondii induce strong antibody response in humans and are considered as useful diagnostic antigens. Previous studies reported expression of amino terminal GRA8 protein in fusion with large tags such as glutathione-S-transferase. The present study aimed to produce soluble full length immunogenic GRA8 in bacteria. Methods: GRA8 comple...
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Toxoplasma gondii is an intracellular protozoan parasite that causes toxoplasmosis and is of medical importance in pregnant women and immunosuppressed patients. In recent years, many methods have been developed for the detection of infection caused by this parasite; however, most of the developed methods are not adequately sensitive. The dense granular antigen (GRA) ...
متن کاملbacterial production of dense granule antigen gra8 of toxoplasma gondii
background: dense granule antigens (gra antigens) of toxoplasma gondii induce strong antibody response in humans and are considered as useful diagnostic antigens. previous studies reported expression of amino terminal gra8 protein in fusion with large tags such as glutathione-s-transferase. the present study aimed to produce soluble full length immunogenic gra8 in bacteria. methods: gra8 comple...
متن کاملEvaluation of recombinant granule antigens GRA1 and GRA7 for serodiagnosis of Toxoplasma gondii infection in dogs
BACKGROUND Toxoplasmosis, caused by the obligate intracellular parasite Toxoplasma gondii, is an important zoonotic disease worldwide. The precise detection of T. gondii infection in dogs has important public health significance. In this study, recombinant granule antigen proteins GRA1 and GRA7 were evaluated as potential diagnostic markers for T. gondii infection in dogs by an indirect enzyme-...
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ژورنال
عنوان ژورنال: Clinical Diagnostic Laboratory Immunology
سال: 1999
ISSN: 1071-412X,1098-6588
DOI: 10.1128/cdli.6.1.24-29.1999