fTnT antibody, tnnt3a antibody, TNTF antibody, TnTf antibody, Tnt antibody, Tnnt3 antibody, troponin T3, fast skeletal type antibody, troponin T3, skeletal, fast antibody, troponin T3, fast skeletal type S homeolog antibody, troponin T type 3 (skeletal, fast) antibody, troponin T1, slow skeletal type antibody, TNNT3 antibody, Tnnt3 antibody, tnnt3.S antibody, TNNT1 antibody
背景
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).,TNNT3,TNTF,troponin T3,Signal Transduction,Cell Biology & Developmental Biology,Cytoskeleton,Microfilaments,TNNT3