Used in research settings to quantify Protein S levels in rat biological samples such as plasma or serum. This kit enables the detection and measurement of Protein S, a key anticoagulant protein involved in regulating blood coagulation and apoptosis. It is commonly applied in studies related to thrombosis, coagulation disorders, and vascular biology in rat models. The ELISA format allows for high sensitivity and specificity, making it suitable for evaluating changes in Protein S expression under experimental conditions, including drug treatments or disease states.