Meaning
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
Origin: Japanese
From tropomyosin. Coined by the Japanese researcher Setsuro Ebashi in 1963.http://jb.oxfordjournals.org/content/vol59/issue4/index.dtl
NYT Puzzle Appearances
No published puzzle dates on file for this word yet. It is part of the official NYT Spelling Bee word list for 2019, 2020, 2021, 2024.