Intermediate filament dynamics

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Abstract

The view of intermediate filaments as static cytoskeletal elements is changing. Studies of exogenous intermediate filament proteins, either microinjected or expressed from transfected genes, have demonstrated that a continuous incorporation of subunits into the polymerized filaments is taking place. This incorporation appears to be required for maintaining normal cytoplasmic networks of intermediate filaments. At the post-translational level, phosphorylation is an important factor in regulating dynamic aspects of intermediate filament organization and structure.

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