Hemoglobin (Hb) is an iron-containing metalloprotein that serves as the primary means of oxygen transport in vertebrates. Hemoglobin is primarily found in red blood cells where it makes up to 97% of the cell′s dry content. Hemoglobin can also be found in other tissues where it serves as an antioxidant. Alterations in blood hemoglobin levels occurs in many diseases such as anemia and polycytheima.
