{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Myoglobin is a single-chain globular protein of 153 amino acids, containing a heme (iron-containing porphyrin) prosthetic group in the center around which the remaining apoprotein folds. With a molecular weight of 16.7 kDa, it is the primary oxygen-carrying pigment of muscle tissues.Immunostaining with Myoglobin provides a specific, sensitive and practical"}]}]}