Enzyme deficiency in McArdle's syndrome?
Type name Enzyme Deficiency Clinical Features V Myophosphorylase deficiency, McArdle's syndrome Muscle phosphorylase Poor exercise tolerance Muscle glycogen abnormally high (2.5%-4%) Blood lactate very low after exercise Reference: Harper; 30th edition; Table: 18-2; Page no: 179
Acid maltase
Muscle phosphorylase
Liver debranching enzyme
Branching enzyme
Metabolism of carbohydrate