tubulin /tu·bu·lin/ (too´bu-lin) the constituent protein of microtubules.
tu·bu·lin (t  by -l n)n. A globular protein that is the structural constituent of microtubules. |
tubulin
the constituent protein of microtubules of cells which provide a skeleton for maintaining cell shape and is thought to be involved in cell motility.
α-tubulin
with β-tubulins contributes to the heterodimer tubulin, the building blocks of the electron microscopically visible cell components, the microtubules.
β-tubulin
one of the monomeric globular proteins which associate to form the dimer, α,β-tubulin, the basis of microfilaments.
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