[Answer] What is myoglobin?

Answer: A protein that holds a reserve supply of oxygen in muscle cells?
What is myoglobin?

Hemoprotein – Wikipedia

Myoglobin – Wikipedia

Myoglobin – Wikipedia

Myoglobin – Wikipedia

Myoglobin (symbol Mb or MB) 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. High concentrations of myoglobin in muscle cells allow organisms to hold their breath for a longer period of time. Diving mammals such as whales and seals have muscles with particularly high abund…

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. High concentrations of myoglobin in muscle cells allow organisms to hold their breath for a longer period of time. Diving mammals such as whales and seals have muscles with particularly high abundance of myoglobin. Myoglobin is found in Type I muscle Type II A and Type II B but most texts consider myoglobin not to be found in smooth muscle . Myoglobin was the first protein to have its three-dimensional structure revealed by X-ray crystallography . This achievement was reported in 1958 by John Kendrew and associates. For this discovery Kendrew shared the 1962 Nobel Prize in chemistry with Max Perutz . Despite being one of the most studied proteins in biology its physiological function is not yet conclusively established: mice genetically engineered to lack myoglobin can be viable and fertile but show many cellular and physiological adaptations to overcome the loss. Through observing these changes in myoglobin-depleted mice it is hypothesised that myoglobin function relates to increased oxygen transport to muscle and to oxygen storage; as well it serves as a scavenger of reactive oxygen species . In humans myoglobin is encoded by the MB gene . Myoglobin can take the forms oxymyoglobin (MbO2) carboxymyoglobin (MbCO) and metmyoglobin (m… Read more on Wikipedia

Myoglobin is a protein that is able to bind oxygen. Myoglobin which is similar to haemoglobin is the main oxygen-carrying pigment of muscle tissues. Like haemoglobin it has a porphyrin ring with an iron ato…

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