tropomyosin /tro·po·my·o·sin/ (-mi´o-sin) a muscle protein of the I band that inhibits contraction by blocking the interaction of actin and myosin, except when influenced by troponin.
tropomyosin
tro·po·my·o·sin (tr  p -m  -s n, tr p-)n. Any of a group of muscle proteins that bind to molecules of actin and troponin to regulate the interaction of actin and myosin. |
tropomyosin
[trop′əmī′əsin]
Etymology: Gk, trepein + mys, muscle
a protein component of sarcomere filaments, which, together with troponin, regulate interactions of actin and myosin in muscle contractions.
tropomyosin
a muscle protein of the I band that inhibits contraction by blocking the interaction of actin and myosin, except when influenced by troponin.
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