Used in biomedical research to quantify glycogen phosphorylase isozyme MM levels in mouse tissue samples, particularly in studies related to muscle metabolism and exercise physiology. Helps assess muscle damage or stress in experimental models, especially in cardiac and skeletal muscle research. Commonly applied in preclinical studies involving metabolic disorders, ischemia, or myopathies to monitor enzyme release as a marker of cellular injury. Provides a sensitive and specific method for detecting GP-MM in serum, plasma, or tissue homogenates, supporting research in metabolic regulation and disease mechanisms.