title: Determination of the serological sex-specific (Sxs) antigen ("H-Y antigen") in birds and mammals using high-titer antisera and a sensitive urease ELISA.
abstract: A rapid, sensitive, and reproducible enzyme-linked immunosorbent assay (ELISA), for the detection of the serological sex-specific (Sxs) antigen (formerly termed H-Y antigen; see Introduction), is described. This assay uses bovine testes extract as the solid phase antigen, and high-titer anti-Sxs antisera and a urease-conjugated anti rat-IgG as the first and second antibody respectively. The urea containing substrate causes a pH shift in a positive reaction, which in turn is visualized by the use of bromocresol purple as a pH indicator. The method, and some representative applications of it, are described in detail.
mesh_terms: D000818:Animals; D002645:Chickens / Q000235:genetics / Q000276:immunology*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006182:H-Y Antigen / Q000032:analysis* / Q000235:genetics; D008297:Male; D008322:Mammals / Q000235:genetics / Q000276:immunology*; D012732:Sex Determination Analysis
chemical_list: D006182:H-Y Antigen