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You are here:Home » Antibodies » Antibodies-Neuroscience » Anti -DAG1 (Dystroglycan, Dystrophin-associated Glycoprotein 1, Alpha-dystroglycan, alpha-DG)

Anti -DAG1 (Dystroglycan, Dystrophin-associated Glycoprotein 1, Alpha-dystroglycan,


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Clone Host Grade Applications
Monoclonal Mouse Affinity Purified E B IH
Alpha-dystroglycan (alpha-DG), also known as dystrophin-associated glycoprotein, is a laminin-binding protein of ~156kD (including glyco-groups). Alpha-DG is a component of the dystroglycan complex, which is involved in early development, morphogenesis and in the pathogenesis of muscular dystrophies. Alpha- and beta-DG are encoded by a single gene and are derived from a precursor polypeptide by posttranslational cleavage. Beta-DG is an integral membrane protein, whereas alpha-DG is membrane- associated through its noncovalent interaction with the extracellular domain of beta-DG. The alpha- and beta-DGs provide important physical linkages between components of basement membranes and cytoplasmic proteins that bind to the actin cytoskeleton. Alpha-DG is a heavily glycosylated, mucin-like protein anchored on the extracellular surface of the myotube, where it may provide linkage between the sarcolemma and extracellular matrix (ECM). Alpha-DG is expressed in a variety of fetal and adult tissues. Tissue-specific glycosylation modifies the laminin specificity of alpha-DG. The muscle and nonmuscle isoforms of dystroglycan differ by carbohydrate moieties but not protein sequence. Alpha-DG has been shown to colocalize with laminin in skeletal and cardiac muscle and a number of other cells including peripheral nerve, astrocytes, Purkinje neurons and kidney epithelium. Laminin-10/11 was shown to bind preferentially to brain alpha-DG. In Duchenne muscular dystrophy, the expression of alpha-DG is dramatically reduced leading to a loss of linkage between the sarcolemma and extracellular matrix, rendering muscle fibers more susceptible to necrosis. In the central nervous system, dystroglycan functions as a dual receptor for agrin and laminin-2 for instance in the Schwann cell membrane. Furthermore, defects in dystroglycan are central to the pathogenesis of structural and functional brain abnormalities seen in congenital muscular dystrophies (CMD).
Catalog #D9905-04D
ApplicationsSuitable for use in Western Blot, ELISA and Immunohistochemistry. Other applications not tested.
Recommended DilutionWestern Blot: 1:50
Immunohistochemistry: Paraffin
Optimal dilutions to be determined by the researcher.
Storage and StabilityMay be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Clone TypeMonoclonal
Clone No13A44
FormSupplied as a liquid in PBS, 0.1% BSA, 0.02% sodium azide.
PurityPurified by Protein G affinity chromatography.
ImmunogenDystrophin-associated glycoprotein 1
SpecificityRecognizes a glycoepitope unique to bovine brain alpha-dystroglycan. Species Crossreactivity: human, mouse, rabbit and rat.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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