title: In vitro binding of radioiodinated rat follicle-stimulating hormone to the testis of the mallard duck, Anas platyrhynchos l.
abstract: The binding of 125I-labelled rat FSH to homogenates and frozen sections of mallard duck testis was investigated. The equilibrium association constant (Ka) in the homogenates (8.5 x 10(9) M-1) was similar to those reported in other avian and mammalian species. Autoradiography suggested that the binding sites for the labelled hormone were localized in the tubular compartment.
mesh_terms: D000818:Animals; D001345:Autoradiography; D001665:Binding Sites; D004372:Ducks / Q000378:metabolism*; D005640:Follicle Stimulating Hormone / Q000378:metabolism*; D066298:In Vitro Techniques; D007700:Kinetics; D008297:Male; D051381:Rats; D013737:Testis / Q000378:metabolism*
chemical_list: D005640:Follicle Stimulating Hormone