Aliases for TPM1 Gene
External Ids for TPM1 Gene
Previous HGNC Symbols for TPM1 Gene
Previous GeneCards Identifiers for TPM1 Gene
This gene is a member of the tropomyosin family of highly conserved, widely distributed actin-binding proteins involved in the contractile system of striated and smooth muscles and the cytoskeleton of non-muscle cells. Tropomyosin is composed of two alpha-helical chains arranged as a coiled-coil. It is polymerized end to end along the two grooves of actin filaments and provides stability to the filaments. The encoded protein is one type of alpha helical chain that forms the predominant tropomyosin of striated muscle, where it also functions in association with the troponin complex to regulate the calcium-dependent interaction of actin and myosin during muscle contraction. In smooth muscle and non-muscle cells, alternatively spliced transcript variants encoding a range of isoforms have been described. Mutations in this gene are associated with type 3 familial hypertrophic cardiomyopathy. [provided by RefSeq, Jul 2008]
GeneCards Summary for TPM1 Gene
TPM1 (Tropomyosin 1) is a Protein Coding gene. Diseases associated with TPM1 include Cardiomyopathy, Familial Hypertrophic, 3 and Cardiomyopathy, Dilated, 1E. Among its related pathways are Dilated cardiomyopathy (DCM) and Cardiac muscle contraction. Gene Ontology (GO) annotations related to this gene include actin binding and cytoskeletal protein binding. An important paralog of this gene is TPM4.
UniProtKB/Swiss-Prot Summary for TPM1 Gene
Binds to actin filaments in muscle and non-muscle cells (PubMed:23170982). Plays a central role, in association with the troponin complex, in the calcium dependent regulation of vertebrate striated muscle contraction (PubMed:23170982). Smooth muscle contraction is regulated by interaction with caldesmon. In non-muscle cells is implicated in stabilizing cytoskeleton actin filaments.