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tropomyosin

Upper-Intermediate (B2)

IPA: /trəˈpəʊməˌjəʊsɪn/

KK: /trəˈpōməˌyōsən/

noun
Definition

A type of protein found in muscle cells that helps control the interaction between actin and myosin, which are important for muscle contraction.


Example

Tropomyosin plays a crucial role in muscle contraction by regulating the binding of myosin to actin.


Conversation
Sloth A
I was reading about muscle proteins, and I came across something called tropomyosin.
Sloth B
Oh really? What does it do?
Sloth A
It helps regulate the interaction of actin and myosin during muscle contraction, which is pretty fascinating.
Sloth B
That sounds interesting! It's amazing how our bodies work.

Synonyms & Antonyms
Synonyms
protein
filament
complex
Antonyms
none
unrelated
disorder
Root Explanation

Tropomyosin is formed from 'tropo-' (from Greek 'tropos', meaning turn or change) and 'myosin' (from Greek 'mys', meaning muscle). The word refers to a protein that plays a role in muscle contraction and is involved in the regulation of muscle fibers' shape and function.

Memory Tip

Think of 'turning' ('tropo-') in relation to muscle ('myosin') — this helps you remember that tropomyosin is a protein that regulates muscle contraction.

Visually Confused Words

No commonly confused words.

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