Used for the quantitative measurement of α-ketoadipic acid (α-KAD) activity in human biological samples such as serum, plasma, or tissue extracts. This ELISA kit is particularly useful in clinical and research settings to assess metabolic disorders related to lysine and tryptophan catabolism. Elevated levels of α-KAD are associated with glutaric aciduria type I and other mitochondrial or metabolic dysfunctions, making this kit a valuable tool for diagnosis, monitoring disease progression, and evaluating therapeutic interventions. The assay enables high-throughput analysis with high sensitivity and specificity, supporting studies in metabolic disease research, biomarker validation, and personalized medicine.