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  • Title: Plectin: a cytolinker by design.
    Author: Steinböck FA, Wiche G.
    Journal: Biol Chem; 1999 Feb; 380(2):151-8. PubMed ID: 10195422.
    Abstract:
    Plectin is a cytoskeletal protein of >500 kDa that forms dumbbell-shaped homodimers comprising a central parallel alpha-helical coiled coil rod domain flanked by globular domains, thus providing a molecular backbone ideally suited to mediate the protein's interactions with an array of other cytoskeletal elements. Plectin self-associates and interacts with actin and intermediate filament cytoskeleton networks at opposite ends, and it binds at both ends to the hemidesmosomal transmembrane protein integrin beta-4, and likely to other junctional proteins. The central coiled coil rod domain can form bridges over long stretches and serves as a flexible linker between the structurally diverse N-terminal domain and the highly conserved C-terminal domain. Plectin is also a target of p34cdc2 kinase that regulates its dissociation from intermediate filaments during mitosis.
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