ArticleInfection and immunity1998
The p29 and p35 immunodominant antigens of Neospora caninum tachyzoites are homologous to the family of surface antigens of Toxoplasma gondii.
Article in Infection and immunity, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
38 citing papers in PubMed, 149 citations in OpenAlex.
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- Importance of serological cross-reactivity among Toxoplasma gondii, Hammondia spp., Neospora spp., Sarcocystis spp. and Besnoitia besnoiti.Parasitology · 2017Review
- Enzyme-linked immunosorbent assays using recombinant TgSAG2 and NcSAG1 to detect Toxoplasma gondii and Neospora caninum-specific antibodies in domestic animals in Turkey.The Journal of veterinary medical science · 2017Article
- First Characterization of theBioMed research international · 2017Article
- Large, rapidly evolving gene families are at the forefront of host-parasite interactions in Apicomplexa.Parasitology · 2015Review
- The extracellular matrix protein mindin as a novel adjuvant elicits stronger immune responses for rBAG1, rSRS4 and rSRS9 antigens of Toxoplasma gondii in BALB/c mice.BMC infectious diseases · 2014Article
- Generation and immunity testing of a recombinant adenovirus expressing NcSRS2-NcGRA7 fusion protein of bovine Neospora caninum.The Korean journal of parasitology · 2013Article
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- Sirtuins of parasitic protozoa: in search of function(s).Molecular and biochemical parasitology · 2012Review
- Development of a diagnostic method for neosporosis in cattle using recombinant Neospora caninum proteins.BMC biotechnology · 2012Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Neospora caninum is an apicomplexan parasite that is closely related to Toxoplasma gondii and has been found to be associated with neurological disorders in dogs and congenital infections and abortions in cattle. We have identified two surface proteins of 29 and 35 kDa (designated Ncp29 and Ncp35, respectively) from N. caninum tachyzoites that are the predominant antigens recognized by antisera from Neospora-infected animals. Monoclonal antibodies against Ncp29 and Ncp35 were used to analyze several independent and diverse N. caninum isolates; both antigens were recognized in all isolates, suggesting that they are well conserved. Localization studies and surface labeling with biotin demonstrated that Ncp29 and Ncp35 are membrane associated and displayed on the surface of the parasite. After treatment with phosphatidylinositol-specific phospholipase C, parasite lysates were analyzed with antibodies against the cross-reacting determinant of glycosylphosphatidylinositol anchors. Approximately six glycolipid-anchored surface proteins were identified, with the two most prominent corresponding to Ncp29 and Ncp35. Sequence comparisons of Ncp29 and Ncp35 with GenBank indicated that they are most similar to the T. gondii surface antigen 1 (SAG1) and surface antigen 1-related sequence 2 (SRS2), respectively. Consequently, Ncp29 has been designated NcSAG1 and Ncp35 has been designated NcSRS2. Both NcSAG1 and NcSRS2 contain a tandemly duplicated motif and 12 absolutely conserved cysteines which are also found in all of the SAG and SRS proteins of T. gondii. Maintenance of these motifs and the 12 cysteine residues suggests that these surface antigens share a similar secondary and tertiary structure that is presumably important for a conserved function that these antigens serve during infection.
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