TPM3

TPM3 encodes tropomyosin alpha-3 chain, a member of the tropomyosin family that stabilizes actin filaments and regulates muscle contraction by modulating actin-myosin interactions. It is also known as TPM3-1 or alpha-tropomyosin 3. The protein参与 actin cytoskeleton organization and cell motility, interacting with actin and other cytoskeletal proteins to maintain structural integrity in both muscle and non-muscle cells.
Mutations in TPM3 are linked to congenital myopathies, such as nemaline myopathy and cap myopathy, characterized by muscle weakness and abnormal sarcomere structure. While no specific drugs targeting TPM3 are currently approved, research focuses on understanding its role in muscle disease pathogenesis to develop potential therapies targeting cytoskeletal function or muscle contraction regulation.