Recombinant Human Tropomyosin alpha-4 chain (TPM4)

Uniprot Id

P67936

Target Species

Human

Target Name

TPM4

Target Full Name

Tropomyosin alpha-4 chain

Target Function

Binds to actin filaments in muscle and non-muscle cells. Plays a central role, in association with the troponin complex, in the calcium dependent regulation of vertebrate striated muscle contraction. Smooth muscle contraction is regulated by interaction with caldesmon. In non-muscle cells is implicated in stabilizing cytoskeleton actin filaments. Binds calcium.

Target Subcellular Location

Cytoplasm, cytoskeleton.

Target Protein Families

Tropomyosin family

Target Tissue Specificity

Detected in cardiac tissue and platelets, the form found in cardiac tissue is a higher molecular weight than the form found in platelets. Expressed at higher levels in the platelets of hypertensive patients with cardiac hypertrophy than in the platelets o

Target Research Area

Signal Transduction

Target Synonyms

epididymis secretory protein Li 108; HEL-S-108; TM30p1; TMP 4; TPM4; TPM4_HUMAN; Tropomyosin 4; Tropomyosin alpha 4 chain; Tropomyosin alpha-4 chain; Tropomyosin-4; wu:fb06e07; zgc:103436; zgc:63909

Target Background

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. Multiple transcript variants encoding different isoforms have been found for this gene.