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MUbio
alpha-SM1 reacts exclusively with alpha-smooth muscle actin which is typical for vascular and visceral smooth muscle cells, but which is also present in myofibroblasts. The epitope that is recognized by α-SM1 is Ac-EEED.
The epitope recognized by α-SM1 is highly conserved. The antibody therefore cross-reacts with many species including protochordates, lower craniates and mammals.
The antibody may be stored at 4°C. For prolonged storage prepare appropriate aliquots and store at or below -20°C. Prior to use, an aliquot is thawed slowly in the dark at ambient temperature, spun down again and used to prepare working dilutions by adding sterile phosphate buffered saline (PBS, pH 7.2). Repeated thawing and freezing should be avoided. Working dilutions should be stored at 4°C, not refrozen, and preferably used the same day. If a slight precipitation occurs upon storage, this should be removed by centrifugation. It will not affect the performance or the concentration of the product.
Smooth Muscle Actin 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 actin being a major constituent of the contractile apparatus, while beta and gamma actins are involved in the regulation of cell motility. In particular, smooth muscle actin is an alpha actin that is found in skeletal muscle. Actin exists as a ubiquitous protein involved with filament formation that make up large portions of the cytoskeleton. Actin filaments interact with myosin to assist in muscle contraction as well as aiding in cell motility and cytokinesis. Smooth muscle actin is found on smooth muscle vessel walls, gut wall, myometrium, myoepithelial cells in breast and salivary glands. Defects in the smooth muscle actin gene cause aortic aneurysm familial thoracic type 6. Actin isoforms differ slightly in their N-terminus and the sequences of each are perfectly conserved in higher vertebrates. Alpha-smooth muscle actin is abundant in vascular and visceral smooth muscle cells. In addition, it has also been shown that smooth muscle actin appear in stress fibers of fibroblastic cells during pathological situations involving contractile phenomena such as wound healing and fibrocontractive diseases. Multiple alternatively spliced variants of smooth muscle actin have been identified.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: Actin Alpha 2 Smooth Muscle Aorta; Actin Vascular Smooth Muscle; actin, alpha 2, smooth muscle, aorta; actin, alpha 2, smooth muscle, aorta S homeolog; Actin, aortic smooth muscle; Alpha Cardiac Actin; alpha smooth muscle actin; Alpha-actin; Alpha-actin-2; alpha-cardiac actin; alpha-SM-actin; Aortic Smooth Muscle; asma; Cell growth-inhibiting gene 46 protein; Growth Inhibiting Gene 46; SM actin; smooth muscle; smooth muscle alpha-actin; vascular smooth muscle alpha-actin
Gene Aliases: a-sma; AAT6; ACT-4; ACTA2; acta2.S; ACTSA; ACTVS; alpha-actin; ASMA; GIG46; MYMY5; sm-actin; sma; SMactin; XELAEV_18034370mg
UniProt ID: (Chicken) P08023, (Human) P62736, (Rat) P62738
Entrez Gene ID: (Pig) 733615, (Chicken) 423787, (Human) 59, (Sheep) 101121051, (Rat) 81633, (Xenopus) 431847
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