structural molecule activity | protein binding
intermediate filament | supramolecular fiber | cell | intracellular organelle | intermediate filament cytoskeleton | type III intermediate filament | vesicle | extracellular exosome | extracellular region | membrane-bounded organelle | extracellular vesicle | organelle | extracellular space | cytoskeleton | intracellular | membrane | supramolecular complex