(GIST OF SCIENCE REPORTER) Myoglobi

(FEBRUARY-2026)

Researchers have developed a flexible, low-cost biosensor capable of detecting myoglobin which is associated with the early stages of a heart attack.

It is found predominantly in striated muscle tissue, namely skeletal muscle and cardiac muscle.
Specifically, it is in the cytoplasm of cardiac myocytes and the sarcoplasm of oxidative skeletal muscle fibers.
It encodes a single polypeptide chain with one oxygen binding site.
It is one of the members of the globin superfamily, which also includes hemoglobin. It often gets compared structurally and functionally to hemoglobin.
Hemoglobin has four polypeptide chains and four oxygen binding sites.
Composition: It is made of amino acids, iron and other molecules that work together to hold onto oxygen.

Transports Oxygen: It transports oxygen from bloodstream to your muscles when they need it to convert stored energy into movements.
It serves as a sensitive indicator of cellular damage when detected in urine or plasma.
It serves as a buffer of intracellular oxygen concentrations and as an oxygen reservoir in muscle.
Enzymatic functions: It is necessary for the decomposition of bioactive nitric oxide to nitrate. The removal of nitric oxide enhances mitochondrial respiration.
Remove reactive oxygen species: It can do this by interacting with fatty acids.