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HIV-1 p24 antigen
ELISA by ZeptoMetrix has 96 microwells coated with a monoclonal antibody
specific for the p24 gag gene product of HIV-1. Viral antigen in the
specimen is specifically captured onto the immobilized antibody during
specimen incubation. The captured antigen is then reacted with a high-titered
human anti-HIV-1 antibody conjugated with biotin. Following a subsequent
incubation with streptavidin peroxidase, color develops as the bound enzyme
reacts with the substrate. Resultant optical density is proportional to the
amount of HIV-1 p24 antigen present in the specimen.
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