ArticleThe Journal of veterinary medical science2014
Identification and characterization of a Trypanosoma congolense 46 kDa protein as a candidate serodiagnostic antigen.
Article in The Journal of veterinary medical science, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Recent advances in clinical and laboratory diagnosis of hydatid cyst: from imaging to recombinant and nanobiosensor-based approaches.Infection · 2026Review
- Development of chimeric multivalent proteins for serological diagnosis of African animal trypanosomosis.Parasitology · 2025Article
- Evaluation of the sensitivity and specificity of GST-tagged recombinant antigens 2B2t, Ag5t and DIPOL in ELISA for the diagnosis and follow up of patients with cystic echinococcosis.PLoS neglected tropical diseases · 2020Article
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9 authors.
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Abstract
Trypanosoma congolense is a major livestock pathogen in Africa, causing large economic losses with serious effects on animal health. Reliable serodiagnostic tests are therefore urgently needed to control T. congolense infection. In this study, we have identified one T. congolense protein as a new candidate serodiagnostic antigen. The 46.4 kDa protein (TcP46, Gene ID: TcIL3000.0.25950) is expressed 5.36 times higher in metacyclic forms than epimastigote forms. The complete nucleotide sequences of TcP46 contained an open reading frame of 1,218 bp. Southern blot analysis indicated that at least two copies of the TcP46 gene were tandemly-arranged in the T. congolense genome. The recombinant TcP46 (rTcP46) was expressed in Escherichia coli as a glutathione S-transferase (GST) fusion protein. Western blot analysis and confocal laser scanning microscopy revealed that the native TcP46 protein is expressed in the cytoplasm during all life-cycle stages of the parasite. Moreover, an enzyme-linked immunosorbent assay (ELISA) based on rTcP46 detected the specific antibodies as early as 8 days post-infection from mice experimentally infected with T. congolense. No cross-reactivity was observed in the rTcP46-based ELISA against serum samples from cattle experimentally infected with Babesia bigemina, B. bovis and Anaplasma marginale. These results suggest that rTcP46 could be used as a serodiagnostic antigen for T. congolense infection.
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