About Myoglobin
Myoglobin (Myoglobin, Mb) is a small-molecule pigment protein composed of globin and heme, which can reversibly combine with oxygen to form MbO2. MbO2 is called oxygenated myoglobin , Mb is called deoxymyoglobin. It has the function of transporting and storing oxygen in muscle cells. When the heart muscle is damaged, it diffuses from the heart muscle cells and enters the blood circulation. Myoglobin only exists in the heart muscle and striated muscle, and other tissues, including smooth muscle, do not contain this protein.