Alpha-SMA (ACTA2) Antibody – Rabbit Polyclonal

The protein 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. Defects in this gene cause aortic aneurysm familial thoracic type 6. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Nov 2008]

ACTA2: Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells. 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. Up-regulated in response to enterovirus 71 (EV71) infection. Belongs to the actin family.

Protein type: Cytoskeletal; Motility/polarity/chemotaxis; Contractile

Chromosomal Location of Human Ortholog: 10q23.3

Cellular Component: extracellular space; smooth muscle contractile fiber; protein complex; cytoplasm; cytosol; actin cytoskeleton

Molecular Function: protein kinase binding; ATP binding

Biological Process: muscle contraction; response to virus; regulation of blood pressure; vascular smooth muscle contraction

Disease: Moyamoya Disease 5; Multisystemic Smooth Muscle Dysfunction Syndrome; Aortic Aneurysm, Familial Thoracic 6