α-Actinin (ACTN2) is a 100kDa actin-binding protein that is found in muscle as well as non-muscle cells. In smooth muscles, α-actinin is present in dense bodies and plaques whereas in normal skeletal muscles, it is associated with z-discs that define muscle sarcomeres. ACTN2 is located on human chromosome lq42-q43. α-actinin has rod shaped N-terminal domain.
Mouse monoclonal anti-α-actinin (sarcomeric) antibody stains thymic myoid cells. The antibody exhibits wide reactivity with human and animal muscle tissue.
The antibody is specific for a-skeletal and a-cardiac muscle actinins. The antibody labels Z lines and dots in stress fibers of skeletal muscle in myotubes but does not react with non-skeletal muscle elements (e.g., connective tissue, epithelium, nerves, smooth muscle).
Mouse monoclonal anti-α-actinin (sarcomeric) antibody stains thymic myoid cells. The antibody exhibits wide reactivity with human and animal muscle tissue. α-actinin is detected predominantly in dense bodies and plaques which are characteristic of that tissue. Immunofluorescent labeling of a large variety of cells with anti a -actinin reveals an extensive association of the proteins with the actin containing stress fibers and, in particular, with their membrane-bound termini.
Monoclonal Anti-α-Actinin (Sarcomeric) (mouse IgG1 isotype) is derived from the EA-53 hybridoma produced by the fusion of mouse myeloma cells and splenocytes from BALB/c mice immunized with purified rabbit skeletal a-actinin.1 The isotype is determined using Mouse Monoclonal Antibody Isotyping Reagents, Catalog Number ISO2. Monoclonal Anti-α-Actinin (Sarcomeric) may be used for the localization of sarcomeric α-actinin using various immunochemical assays such as ELISA, dot blot, immunoblot, immunohistochemistry, and immunocytochemistry. The antibody is useful in the immunolocalization of α-actinin in normal and neoplastic cultured cells and tissues, and for studies on the state of sarcomeric muscle organization, in normal and pathological situations.
The antibody is specific for a-skeletal and α-cardiac muscle actinins. The antibody labels Z lines and dots in stress fibers of skeletal muscle in myotubes but does not react with non-skeletal muscle elements (e.g., connective tissue, epithelium, nerves, smooth muscle).
Rabbit skeletal α-actinin
Cardiac myocytes were stained with monoclonal mouse anti-actinin to visualize the Z-lines after fixation in pre-cooled methanol/acetone mix (1:1) for 10 minutes at 4 °C.
Mouse monoclonal anti-α-actinin (sarcomeric) antibody is suitable for immunohistochemistry (1:800), ELISA, immunofluorescence and western blot (1:2,500) applications.
α-actinin functions as an actin crosslinker and promotes cell migration. Mutations in α-actinin gene locus is observed in patients with heterogeneous hypertrophic cardiomyopathy and in juvenile onset atrial fibrillation.
Supplied as ascites fluid with 15 mM sodium azide as a preservative
Storage and Stability
Store at -20 °C. For continuous use, the product may be stored at 2-8 °C for up to one month. For extended storage, the solution may be frozen in working aliquots at -20 °C. Repeated freezing and thawing, or storage in "frost-free" freezers, is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use.
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