The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as
Microtubules | Microfilaments | Intermediate filaments | |
Diameter | 25 nm with 15 nm lumen (hollow tubes) | 6 nm | 8-12 nm |
Protein subunit | Tubulin, a dimer consisting of -tubulin and - tubulin | Actin | Various types of proteins |