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Troponin T (shortened TnT [1] or TropT) is a part of the troponin complex, which are proteins integral to the contraction of skeletal and heart muscles. They are expressed in skeletal and cardiac myocytes. Troponin T binds to tropomyosin and helps position it on actin, [2] and together with the rest of the troponin complex, modulates ...
Cardiac sarcomere structure, featuring troponin T. Cardiac muscle troponin T (cTnT) is a protein that in humans is encoded by the TNNT2 gene. [5] [6] Cardiac TnT is the tropomyosin-binding subunit of the troponin complex, which is located on the thin filament of striated muscles and regulates muscle contraction in response to alterations in intracellular calcium ion concentration.
Troponin T (blue) anchors the complex on tropomyosin. Troponin is found in both skeletal muscle and cardiac muscle, but the specific versions of troponin differ between types of muscle. The main difference is that the TnC subunit of troponin in skeletal muscle has four calcium ion-binding sites, whereas in cardiac muscle there are only three.
Cardiac troponin T (high sensitive) Male 0.022 [7] ng/mL 99th percentile cutoff: Female 0.014 [7] ng/mL 99th percentile cutoff: newborn/infants not established
Test Sensitivity and specificity Approximate peak Description Troponin test: The most sensitive and specific test for myocardial damage. Because it has increased specificity compared with CK-MB, troponin is composed of 3 proteins- Troponin C, Cardic troponin I, and Cardiac troponin T. Troponin I especially has a high affinity for myocardial injury.
21925 Ensembl ENSG00000101470 ENSMUSG00000017300 UniProt P02585 P20801 RefSeq (mRNA) NM_003279 NM_009394 RefSeq (protein) NP_003270 NP_033420 Location (UCSC) Chr 20: 45.82 – 45.83 Mb Chr 2: 164.62 – 164.62 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Troponin C, skeletal muscle is a protein that in humans is encoded by the TNNC2 gene. Troponin (Tn), is a key protein complex in ...
Accessed February 5, 2025. About the writer. Anna Serio-Ali is a trusted lending expert who specializes in consumer and business financing. A former certified commercial loan officer, Anna's ...
Slow skeletal muscle troponin T (sTnT) is a protein that in humans is encoded by the TNNT1 gene. [5] [6]The TNNT1 gene is located at 19q13.4 in the human chromosomal genome, encoding the slow twitch skeletal muscle isoform of troponin T (ssTnT). ssTnT is an ~32-kDa protein consisting of 262 amino acids (including the first methionine) with an isoelectric point (pI) of 5.95.