Abstract
In an antigen capture assay for hybridoma screening, the detection method identifies the presence of the antigen. Often this is achieved by labeling the antigen directly. In this assay, the polyvinyl chloride (PVC) wells of a high-binding-capacity ELISA plate are first coated with an affinity-purified rabbit anti-mouse immunoglobulin and then incubated with hybridoma tissue culture supernatant. Monoclonal antibodies in the supernatant are "captured" on the coated PVC surface and detected by screening with biotin- or histidine (His)-tagged antigen. The antigen can be labeled to a high specific activity and thus very little antigen is required for this procedure.
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