próteinþræðir
Próteinþræðir, also known as protein filaments, are essential macromolecular structures found within cells. They are polymers of protein subunits and play a critical role in a wide variety of cellular processes. The primary types of protein filaments in eukaryotic cells are actin filaments, intermediate filaments, and microtubules.
Actin filaments, also called microfilaments, are the thinnest of the cytoskeletal elements. They are composed of
Intermediate filaments are diverse in their protein composition, with examples including keratins, vimentin, and neurofilaments. They
Microtubules are the thickest cytoskeletal filaments, made of tubulin subunits. They are involved in maintaining cell
Together, these protein filaments form the cytoskeleton, a dynamic network that provides structural support, enables cell