antigen

(redirected from homologous antigen)
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Related to homologous antigen: antigenic specificity, heterologous antigen
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Words related to antigen

any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)

References in periodicals archive ?
In the serological diagnosis of leishmaniasis, using either IFA or ELISA assays, the homologous antigen gives higher sensitivity when compared to the heterologous antigen, which gives unspecific reactions with antibodies of people without leishmaniasis and with carriers of other pathologies.
Employing a simple enzyme/acid extraction procedure, Streptex provides a homologous antigen of strep groups A, B, C, D, F, and G, which then is identified using group-specific, antibody-coated latex particles.
Preliminary results with these ELISAs suggest that the use of homologous antigen may moderately increase the estimates of prevalence among infected rodents; no additional cases in humans have been recognized through the use of these assays.
4 representative virus A/duck/ Anhui/1/2006, the hemagglutination inhibition (HI) titers of Re-5 antiserum against the 7 subtype H5N1 viruses were as much as 6-7 log2 lower than that against the homologous antigen.
Note: Equivocal titer to homologous antigen indicated with #.