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Description for Protein TNNT3

troponin T type 3 (skeletal, fast)
4 total interacting proteins; 1 platelet interacting proteins
Icon Book Platelet Evidence (proteome studies/others : 0/0)
(Not detected in platelets)
Summary:
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] (PubMed Links)
Domains and Motifs:
  • CC: Coiled Coil
    • Gene Ontology:
    Gene Ontology Annotations
    KEGG - Enzyme ID(s):
    None Available
    KEGG - Orthology:
    K12046
    KEGG - Pathway(s):
    None Available
    Nomenclature / Alternative Names:
    Slow skeletal muscle troponin T; CSX; CSX1; NKX2E; NKX2.5; Troponin T3, skeletal, fast isoform 1; Troponin T3, skeletal, fast isoform 3; Troponin T3, skeletal, fast isoform 4
    Approved Symbol:
    TNNT3
    (De-) Phosphorylations:
    Total (de-) phosphorylation sites: 0
    No human (de-) phosphorylation sites; No platelet phosphorylation sites
    Phosphorylation Targets:
    Total phosphorylation targets: 0
    Human phosphorylation targets: 0;Predicted platelet targets: 0
    		Protein Characteristics:
    Isoform-specific Information
    Icon DrugsAssociated Drugs (DrugBank Accession):

    None Available

    Associated Genetic Diseases:

  • Arthrogryposis, distal, type 2B(Pd)
    		• Predicted Transmembrane Domains:
  • Isoform 4 : 0
  • Isoform 3 : 0
  • Isoform 2 : 0
  • Isoform 1 : 0
    • Additional Identifiers:

    HPRD: 02822 Entrez Gene ID: 7140 OMIM ID: 600692 Swissprot Accession: P45378;