title: Active center-based immunoassay approach using bacterial luciferase.
mesh_terms: D001665:Binding Sites; D004797:Enzyme-Linked Immunosorbent Assay; D004964:Estriol / Q000032:analysis*; D006801:Humans; D007124:Immunoenzyme Techniques; D007202:Indicators and Reagents; D007328:Insulin / Q000032:analysis*; D008156:Luciferases / Q000378:metabolism*; D011374:Progesterone / Q000032:analysis*
chemical_list: D007202:Indicators and Reagents; D007328:Insulin; D011374:Progesterone; D008156:Luciferases; D004964:Estriol