tropomyosin

Term: tropomyosin

Literally meaning: “that which is turned in muscle”

Origin: Anc Greek

+-τρόπος/tropos(=suffix denoting way, habit, direction or tendency) >τρέπω/trepo(=turn)

+μυο-/myo-(=combining form meaning muscle) > μυς/mys/ (=muscle) > μύω/myo(=enclosed like the muscle inside body or rat in its nest=epimys)

Coined/History

Tropomyosin was first discovered by Bailey in 1948.

Source

Bailey, K. (1948). Biochem. J. 43, 271.

Definition

Tropomyosin  is an actin–binding protein that, in absence of Ca++, binds to F- actin and along with troponin complex regulate muscle contraction.