Heppar1 is a monoclonal antibody that targets an antigen present in the cytoplasm of hepatocytes. It is used in immunohistochemistry, a technique that allows for the detection of specific antigens in tissue sections by employing antibodies tagged with a visible label. Heppar1 is particularly useful because it reacts with a protein that is consistently expressed in both normal and malignant liver cells but is absent in most other tissues.
