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ACTA1

The product encoded by this gene belongs to the actin family of proteins, which are highly conserved proteins that play a role in cell motility, structure and integrity. Alpha, beta and gamma actin isoforms have been identified, with alpha actins being a major constituent of the contractile apparatus, while beta and gamma actins are involved in the regulation of cell motility. This actin is an alpha actin that is found in skeletal muscle. Mutations in this gene cause nemaline myopathy type 3, congenital myopathy with excess of thin myofilaments, congenital myopathy with cores, and congenital myopathy with fiber-type disproportion, diseases that lead to muscle fiber defects.
Protein class

Disease related genes, Human disease related genes, Plasma proteins

Predicted location

Intracellular

Single cell type specificity

Group enriched (Cardiomyocytes, Skeletal myocytes)

Immune cell specificity

Low immune cell specificity

Cell line specificity

Cell line enriched (BEWO)

Interaction

Polymerization of globular actin (G-actin) leads to a structural filament (F-actin) in the form of a two-stranded helix. Each actin can bind to 4 others. Interacts with alpha-actinin (By similarity). Identified in a complex composed of ACTA1, COBL, GSN AND TMSB4X (By similarity). Interacts with TTID (PubMed:10958653). Interacts (via its C-terminus) with USP25; the interaction occurs for all USP25 isoforms but is strongest for isoform USP25m in muscle differentiating cells (PubMed:16501887).

Molecular function

Muscle protein

More Types Infomation

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For Research Use Only. Not For Clinical Use.

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