Area of ​​Expertise - biochemistry

Myoglobin is the oxygen carrier in the muscles of the vertebrates. It consists of eight α-helices, the arrangement of which is very conserved, similar to the subunits of hemoglobin, which are closely related to myoglobin. Inside the protein is the iron-containing heme group to which small gaseous ligands (such as e.g. O2However, myoglobin consists of only one subunit and is not allosterically regulated. Due to the higher oxygen affinity of myoglobin, oxygen is transferred from hemoglobin to myoglobin in the tissue.

See also: hemoglobin

Learning units in which the term is discussed

Transport processes80 min.

BiochemistrySignal and substance transportTransport processes

Transport processes in animal organisms are explained using a few examples. This includes gas transport, glucose and lipid transport.

Oxygen transport in muscles and blood60 min.

BiochemistrySignal and substance transportTransport processes

The structure and the special properties of myoglobin and hemoglobin are explained and compared. A second focus is on the allosteric regulation of hemoglobin.

Protein Dynamics: Myoglobin and Hemoglobin30 min.

BiochemistryProtein synthesisProteins

During the oxygenation / deoxygenation of myoglobin and hemoglobin, intra- and intermolecular movement processes occur, which provide insight into the functioning of oxygen-transporting molecules.