background:
Dystrophin is a large, rod-like cytoskeletal protein found at the inner surface of muscle fibers. Dystrophin is missing in Duchenne Muscular Dystrophy patients and is present in reduced amounts in Becker Muscular Dystrophy patients. The protein encoded by this gene is a peripheral membrane protein found associated with dystrophin and dystrophin-related proteins. This gene is a member of the syntrophin gene family, which contains at least two other structurally-related genes. [provided by RefSeq, Jul 2008].
Function:
Adapter protein that binds to and probably organizes the subcellular localization of a variety of membrane proteins. May link various receptors to the actin cytoskeleton and the dystrophin glycoprotein complex.
Subunit:
Monomer and homodimer (Probable). Interacts with the other members of the syntrophin family SNTA1 and SNTB2; with the sodium channel proteins SCN4A and SCN5A. Interacts with the viral HTLSLV1 TAX protein and with dystrophin protein DMD and related proteins DTNA and UTRN.
Subcellular Location:
Cell membrane, sarcolemma; Peripheral membrane protein; Cytoplasmic side. Cell junction. Cytoplasm, cytoskeleton. Note=In skeletal muscle, it localizes at the cytoplasmic side of the sarcolemmal membrane and at neuromuscular junctions.
Tissue Specificity:
Ubiquitous.
Post-translational modifications:
Phosphorylated by CaM-kinase II.
Similarity:
Belongs to the syntrophin family.
Contains 1 PDZ (DHR) domain.
Contains 2 PH domains.
Contains 1 SU (syntrophin unique) domain.
Database links:
UniProtKB/Swiss-Prot: Q13884.3
GenBank: EAW92008.1
NCBI Reference Sequence: NP_066301.1
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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