# troponin

> English word · Noun · frequency rank #83,837

## Definitions
1. A heterotrimeric regulatory protein complex found in the thin filaments of striated muscle fibers, including both skeletal and cardiac muscle, that controls calcium-mediated muscle contraction.

## Etymology
From tropomyosin. Coined by the Japanese researcher Setsuro Ebashi in 1963.http://jb.oxfordjournals.org/content/vol59/issue4/index.dtl

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/troponin