Used in biomedical research to quantify levels of human pyruvate kinase (PK) in biological samples such as serum, plasma, and cell lysates. This ELISA kit enables researchers to study PK expression in metabolic disorders, cancer, and hemolytic diseases where pyruvate kinase activity is altered. It is particularly useful in studies related to glycolysis regulation and cellular energy metabolism. The assay provides a sensitive and specific method for detecting PK concentrations, supporting both clinical research and drug development efforts targeting metabolic pathways.