TPM1 Gene Summary [Human]

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 and dilated cardiomyopathy 1Y. [provided by RefSeq, Jun 2022]

Details

Type
Protein Coding
Official Symbol
TPM1
Official Name
tropomyosin 1 [Source:HGNC Symbol;Acc:HGNC:12010]
Ensembl ID
ENSG00000140416
Bio databases IDs NCBI: 7168 Ensembl: ENSG00000140416
Aliases tropomyosin 1
Synonyms AI854628, alpha-TM, BI546321, BQ310475, C15ORF13, C76867, CMD1Y, CMH3, HEL-S-265, HTM-alpha, HTM-α, LVNC9, Slow-twitch alpha tropomyosin, Slow-twitch α tropomyosin, Smooth Muscle Alpha TM, Smooth Muscle α TM, TM1, TM2, Tm3, Tma2, Tma5, Tm alpha, Tmpa, TMSA, Tm α, TPM1kappa, TROPOMYOSIN 1, Tropomyosin 1, alpha, Tropomyosin 1, α, Tropomyosin 5b, Tropomyosin Alpha, Tropomyosin α, α-TM, α tropomyosin
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human TPM1 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • actin filament binding
  • Tropomyosin
  • cytoskeletal protein binding
  • structural constituent of muscle
  • Tropomyosin like
  • structural constituent of cytoskeleton
  • actin binding
  • protein homodimerization
  • protein domain specific binding
  • protein binding
  • identical protein binding
  • protein heterodimerization

Pathways

Biological processes and signaling networks where the TPM1 gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • neoplasia
  • tumorigenesis
  • colorectal cancer
  • dilated cardiomyopathy
  • left ventricular noncompaction type 9
  • androgenic alopecia
  • breast cancer
  • arrhythmogenic right ventricular cardiomyopathy
  • hypertrophic cardiomyopathy
  • primary dilated cardiomyopathy
regulated by
regulates
role in cell
  • growth
  • migration
  • formation
  • contractility
  • adhesion
  • morphology
  • quantity
  • sliding
  • assembly
  • disorganization

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Cytoplasm
  • cytoskeleton
  • cilia
  • cell periphery
  • perinuclear region
  • cellular membrane
  • actin cytoskeleton
  • Nucleus
  • myofilaments
  • sarcomere
  • cytosol
  • membrane ruffles
  • plasma membrane projections
  • neurites
  • myofibrils
  • actin stress fibers
  • pseudopodia
  • perikaryon
  • lamellipodia

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human TPM1 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • regulation of cell shape
  • cytoskeleton organization
  • ventricular cardiac muscle tissue morphogenesis
  • positive regulation of ATPase activity
  • sarcomere organization
  • regulation of heart contraction
  • actin filament organization
  • positive regulation of heart rate by epinephrine
  • positive regulation of cell adhesion
  • cardiac muscle contraction
  • wound healing
  • positive regulation of stress fiber assembly
  • ruffle organization
  • regulation of muscle contraction
  • cellular response to reactive oxygen species
  • negative regulation of cell migration
  • muscle filament sliding

Cellular Component

Where in the cell the gene product is active
  • cytoskeleton
  • stress fiber
  • actin cytoskeleton
  • ruffle membrane
  • bleb
  • cytosol
  • actin filament
  • muscle thin filament tropomyosin
  • sarcomere

Molecular Function

What the gene product does at the molecular level
  • actin filament binding
  • identical protein binding
  • protein binding
  • protein homodimerization activity
  • structural constituent of muscle
  • actin binding
  • protein heterodimerization activity
  • structural constituent of cytoskeleton
  • cytoskeletal protein binding

Gene-Specific Assays for Results You Can Trust

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