Used in research and diagnostic applications to detect and quantify BST2 (CD317), a protein involved in immune regulation and viral restriction. Particularly valuable in studies related to HIV and other enveloped viruses, as BST2 inhibits viral release from infected cells. This antibody supports flow cytometry, immunofluorescence, and Western blot analyses to monitor BST2 expression in immune cells. Also employed in therapeutic development targeting BST2 pathways in cancer and chronic viral infections. Its high specificity makes it suitable for use in assays requiring precise detection of cell surface or intracellular BST2.