

Myoglobin : is an iron- and oxygen-binding protein found in the skeletal muscle tissue of vertebrates in general and in almost all mammals. Myoglobin is distantly related to hemoglobin. Compared to hemoglobin, Myoglobin has a higher affinity for oxygen and does not have cooperative-binding with oxygen like hemoglobin does. But at the core, it is an oxygen-binding protein in red blood cells. In humans, myoglobin is only found in the bloodstream after muscle injury.
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