Fourteen cDNA clones encoding epitopes of proteins of Toxoplasma gondii feline enteroepithelial-stages parasites were isolated and expressed in Escherichia coli in an effort to determine the antigenecity of the parasites. Sequence analysis showed that four of the cDNA clones had a 930-bp open-reading frame encoding a product showing similarity to the 14-3-3 protein mRNA sequence.(1) Southern hybridization of DIG-labeled positive clone with T. gondii genomic DNA cleaved with EcoRI, BamHI and HindIII resulted in one or two bands in each case. In an immunofluorescence assay, polyclonal and monoclonal antibodies raised against the expressed protein showed strong reactivity with feline enteroepithelial-stages parasites and sporozoites. In a complementation assay in which a plasmid carrying the protein-coding region of the isolated cDNA was introduced into a Saccharomyces cerevisiae mutant, strain DS9-22, the expressed protein showed complementation of the function of the 14-3-3 protein in yeast transformants. These findings suggest that T. gondii parasites produce a protein showing partial homology with members of the 14-3-3 protein family and this protein is expressed in feline enteroepithelial-stages parasites.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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