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TNNT3, troponin T3, fast skeletal type

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TNNT3, troponin T3, fast skeletal type

  • The binding of Ca(2+) to the trimeric troponin complex initiates the process of muscle contraction. Increased Ca(2+) concentrations produce a conformational change in the troponin complex that is transmitted to tropomyosin dimers situated along actin filaments. The altered conformation permits increased interaction between a myosin head and an actin filament which, ultimately, produces a muscle contraction. The troponin complex has protein subunits C, I, and T. Subunit C binds Ca(2+) and subunit I binds to actin and inhibits actin-myosin interaction. Subunit T binds the troponin complex to the tropomyosin complex and is also required for Ca(2+)-mediated activation of actomyosin ATPase activity. There are 3 different troponin T genes that encode tissue-specific isoforms of subunit T for fast skeletal-, slow skeletal-, and cardiac-muscle. This gene encodes fast skeletal troponin T protein; also known as troponin T type 3. Alternative splicing results in multiple transcript variants encoding additional distinct troponin T type 3 isoforms. A developmentally regulated switch between fetal/neonatal and adult troponin T type 3 isoforms occurs. Additional splice variants have been described but their biological validity has not been established. Mutations in this gene may cause distal arthrogryposis multiplex congenita type 2B (DA2B). [provided by RefSeq, Oct 2009]

  • Gene Synonyms (troponin T, fast skeletal muscle, troponin T type 3 (skeletal, fast), DA2B2, TNTF, beta-TnTF,)
  • NCBI Gene ID: 7140
  • Species: Homo sapiens (Human)
  • UNIPROT ID#>>H9KVA2
    UNIPROT ID#>>P45378
  • View the NCBI Database for this Gene »

The information on this page was collected from publicly accessible databases, and is periodically updated. Promega makes no claims to accuracy, or ownership of these genes.

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The information on this page was collected from publicly accessible databases, and is periodically updated. Promega makes no claims to accuracy, or ownership of these genes.

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The information on this page was collected from publicly accessible databases, and is periodically updated. Promega makes no claims to accuracy, or ownership of these genes.

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