Microtubules are polymers of tubulin that form part of the cytoskeleton and provide structure and shape to eukaryotic cells. Microtubules can be as long as 50 micrometres, as wide as 23 to 27 nm and have an inner … See more

Microtubules are part of the cytoskeleton, a structural network within the cell's cytoplasm. The roles of the microtubule cytoskeleton include … See more

Dynamic instability
Dynamic instability refers to the coexistence of assembly and disassembly at the ends of a … See more

Tubulin and microtubule-mediated processes, like cell locomotion, were seen by early microscopists, like Leeuwenhoek (1677). However, the fibrous nature of flagella and other structures were discovered two centuries later, with improved See more

In eukaryotes, microtubules are long, hollow cylinders made up of polymerized α- and β-tubulin dimers. The inner space of the hollow microtubule cylinders is referred to as the lumen. The … See more

Nucleation
Nucleation is the event that initiates the formation of microtubules from the tubulin dimer. Microtubules … See more

Post-translational modifications
Although most microtubules have a half-life of 5–10 minutes, certain microtubules can remain stable … See more