Alpha-actinin-1

Alpha-actinin-1 is a protein that in humans is encoded by the ACTN1 gene.

Function

Alpha actinins belong to the spectrin gene superfamily which represents a diverse group of cytoskeletal proteins, including the alpha and beta spectrins and dystrophins. Alpha-actinin-1 is an F-actin cross-linking protein – a bundling protein that is thought to anchor actin to a number of intracellular structures. Alpha-actinin-1 is a non-muscle cytoskeletal isoform found along microfilament bundles and adherens-type junctions, where it is involved in binding actin to the membrane. In contrast, skeletal, cardiac, and smooth muscle isoforms are localized to the Z-disc and analogous dense bodies, where they help anchor the myofibrillar actin filaments.

Interactions Alpha-actinin-1 has been shown to interact with: CDK5R1, CDK5R2, Collagen, type XVII, alpha 1, GIPC1, PDLIM1, Protein kinase N1, SSX2IP, and Zyxin. PTPRT (PTPrho)

Alpha-actinin-1

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