Used in biomedical research to quantitatively measure levels of Yes-associated protein 1 (YAP1) in rat samples, particularly in studies related to cell proliferation, organ size regulation, tissue regeneration, and cancer development. The ELISA kit enables researchers to assess YAP1 activation in signaling pathways associated with the Hippo pathway, providing insights into cellular responses to mechanical cues, stress, and injury in rat models. Commonly applied in preclinical studies involving liver disease, cardiac remodeling, and tumorigenesis.