{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Vimentin is a 57 kDa structural protein belonging to the intermediate filament family. Intermediate filaments are an important structural feature of eukaryotic cells. Together with microtubules and actin microfilaments, they make up the cytoskeleton. Vimentin is expressed in a variety of mesenchymal cells, including melanocytes, lymph cells, endothelial cells and fibroblasts."}]}]}