Syntrophin, alpha 1

Alpha-1-syntrophin is a is_associated_with::protein that in humans is encoded by the SNTA1 is_associated_with::gene.

Function
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. The PDZ domain of syntrophin-α1(SNTA1), the most abundant isoform in the heart, has been reported to bind to the C-terminal domain of murine cardiac voltage-gated sodium channels (SkM2) causing altering ion channel activity leading to is_associated_with::Long QT syndrome.

Interactions
Syntrophin, alpha 1 has been shown to interact with is_associated_with::Dystrophin,  is_associated_with::Nav1.1 and is_associated_with::Nav1.5.