Used in biomedical research to quantify FNDC5 protein levels in biological samples such as serum, plasma, and tissue lysates. Enables researchers to study the role of FNDC5 in metabolic regulation, exercise physiology, and diseases like diabetes and obesity. Commonly applied in studies related to irisin, a hormone derived from FNDC5 cleavage, to investigate its effects on energy expenditure, glucose homeostasis, and mitochondrial function. The kit supports high-throughput screening in preclinical studies and aids in validating FNDC5 as a potential biomarker for metabolic and neurodegenerative conditions.