troponin
a protein of muscle tissue that binds calcium ions and is involved in contraction.
Origin of troponin
1Words Nearby troponin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use troponin in a sentence
The doctors asked Fanone if he’d ever had heart problems, because his body was flooded with troponin, a chemical indicating cardiac distress.
Scientific definitions for troponin
[ trō′pə-nĭn, trŏp′ə- ]
One of the proteins that make up the thin filaments of muscle tissue and that regulate muscle contraction and relaxation. Troponin occurs in three forms bound together in a complex. One of the three forms is a receptor of calcium ions that induces structural changes that allow the actin in the thin filaments to interact with myosin, causing contraction.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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