title: Rings, MAPs and microtubules.
mesh_terms: D006023:Glycoproteins; D046911:Macromolecular Substances; D008854:Microscopy, Electron; D008870:Microtubules / Q000648:ultrastructure*; D014404:Tubulin
chemical_list: D006023:Glycoproteins; D046911:Macromolecular Substances; D014404:Tubulin