Description
Product Characteristics:
The Trk family of nerve growth factor receptors includes Trk A(also referfed to as Trk A gp140),Trk B and Trk C. The prototype member of this gene family, Trk A, encodes a 140 kDa cell surface receptor, gp140, the expression of which is restricted in vivo to neurons of the sensory spinal and cranial gangliaof neurocrest origin. Nerve growth factor (NGF) stimulates tyrosine phosphorylation of Trk gp 140 in neural cell lines and in embryonic dorsal root ganglia. By comparison, BDNF and to a lesser extent, NT-3, but not NGF, can induce tyrosine phophorylayion of Trk B gp 145. The third member of the Trk receptor family, Trk C incodes a 140 kDa protein, Trk C gp140, that is preferentially expressed in brain tissue and primarily functions as a receptor for NT-3.An additional component of the Trk receptor complex, NGFR p175, binds to neurotrophic factors with low affinity but is required for efficient signaling. NGFR p175 accelerates Trk activation and may recruit downstream dffector molecules to the ligand-bound receptor complex.
Subcellular location: Cytoplasm, Cell membrane
Synonyms: TrkA Tyr791, TrkA Phospho Tyr791, TrkA Y791, p-TrkATyr791, CIPA, CIPA, DKFZp781I14186, gp140trk, High affinity nerve growth factor receptor, High affinity nerve growth factor receptor precursor, High affinity nerve growth factor receptor precursor, MTC, MTC, neurotrophic tyrosine kinase receptor type 1, neurotrophic tyrosine kinase receptor type 1, Ntrk 1, Ntrk1, Ntrk1, NTRK1_HUMAN, Oncogene TRK, Oncogene TRK, p140 TrkA, p140-TrkA, TRK 1, Trk A, TRK, TRK, Trk-A, TRK1, TRK1 transforming tyrosine kinase protein, TRK1-transforming tyrosine kinase protein, Tropomyosin-related kinase A, Tyrosine kinase receptor A, Tyrosine kinase receptor, Tyrosine Receptor Kinase A.
Target Information: This gene encodes a member of the tropomyosin family of actin-binding proteins involved in the contractile system of striated and smooth muscles and the cytoskeleton of non-muscle cells. Tropomyosins are dimers of coiled-coil proteins that polymerize end-to-end along the major groove in most actin filaments. They provide stability to the filaments and regulate access of other actin-binding proteins. In muscle cells, they regulate muscle contraction by controlling the binding of myosin heads to the actin filament. Mutations in this gene result in autosomal dominant nemaline myopathy, and oncogenes formed by chromosomal translocations involving this locus are associated with cancer. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]