Vimentin

Vimentin is a type of Intermediate filament protein that is expressed in a wide variety of mesenchymal cells. It is a key component of the Cytoskeleton, which provides structural support to cells. Vimentin plays a crucial role in maintaining cell shape, integrity of the cytoplasm, and stabilizing cytoskeletal interactions.

Structure

Vimentin is a 57 kDa protein that is composed of a central alpha-helical 'rod' domain, flanked by non-helical 'head' (N-terminal) and 'tail' (C-terminal) domains. The rod domain is responsible for the homopolymerization of vimentin, while the head and tail domains are thought to regulate this process.

Function

Vimentin is involved in a number of cellular processes, including cell adhesion, migration, and signaling. It is also implicated in wound healing and the immune response. In addition, vimentin has been found to interact with a number of other proteins, including Plectin and Desmin, which are also involved in maintaining cellular structure and function.

Clinical significance

Alterations in vimentin expression or function have been associated with a number of diseases, including cancers, neurodegenerative diseases, and autoimmune diseases. In particular, vimentin is often overexpressed in cancer cells, and its expression is associated with increased tumor growth and invasion.

See also

• Intermediate filament
• Cytoskeleton
• Mesenchymal cell

External links

• Vimentin at the US National Library of Medicine Medical Subject Headings (MeSH)

Vimentin Resources
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