microtubule
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Research
97,693 papersvia PubMed
Article
28 sectionsContents
- History
- Structure
- Intracellular organization
- Microtubule polymerization
- Nucleation
- Polymerization
- Microtubule dynamics
- Dynamic instability
- "Search and capture" model
- Regulation of microtubule dynamics
- Post-translational modifications
- Tubulin-binding drugs and chemical effects
- Proteins that interact with microtubules
- Microtubule-associated proteins (MAPs)
- Plus-end tracking proteins (+TIPs)
- Motor proteins
- Mitosis
- Centrosomes
- Microtubule subclasses
- Microtubule nuclear in the mitotic spindle
- Functions
- Cell migration
- Cilia and flagella
- Development
- Gene regulation
- See also
- References
- External links
alt=Tubulin and Microtubule Metrics Infographic|thumb|
Microtubules are biopolymers of tubulin that form part of the cytoskeleton to provide structure and shape to a eukaryotic cell. Microtubules can be as long as 50 micrometres, as wide as 23 to 27 nm and have an inner diameter between 11 and 15 nm. They are formed by the polymerization of a dimer of two globular proteins, alpha and beta tubulin into protofilaments that can then associate laterally to form a hollow tube, the microtubule. The most common form of a microtubule consists of 13 protofilaments in the tubular arrangement.thumb|right|Microtubules are one of the cytoskeletal filament systems in eukaryotic cells. The microtubule cytoskeleton is involved in the transport of material within cells, carried out by motor proteins that move on the surface of the microtubule.