Used in immunological research to detect and quantify BTN1A1 (Butyrophilin Subfamily 1 Member A1) expression in cells and tissues. Plays a key role in studying lipid secretion mechanisms, particularly in mammary gland biology and milk fat globule formation. Employed in techniques such as Western blotting, immunohistochemistry, and flow cytometry to investigate BTN1A1’s involvement in immune regulation and metabolic processes. Also utilized in functional studies to block or modulate BTN1A1 activity in cell culture models.