Used in biomedical research to measure levels of antithrombin receptor (ATR) in biological samples such as plasma or serum. Helps investigate coagulation disorders, thrombotic diseases, and endothelial dysfunction. Commonly applied in studies related to thrombosis, inflammation, and vascular injury. Enables researchers to assess ATR expression changes under disease conditions or in response to therapeutic agents. Suitable for use in clinical research settings and drug development where monitoring anticoagulant pathways is critical.