Used in research settings to quantify levels of the Human Trifunctional Enzyme Subunit β (HADHB) in mitochondrial samples. This ELISA kit enables detection and measurement of HADHB protein expression in human tissue lysates or cell extracts, supporting studies on fatty acid oxidation disorders. It is particularly useful in diagnosing and investigating mitochondrial trifunctional protein deficiencies, which are linked to metabolic conditions such as liver dysfunction, cardiomyopathy, and rhabdomyolysis. The kit aids in biomarker validation and supports clinical research focused on inherited metabolic diseases.