tubulin

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tubulin

 [too´bu-lin]
the constituent protein of microtubules; thought to be involved in phagocyte motility.

tu·bu·lin

(tū'byū-lin),
A protein subunit of microtubules; it is a dimer composed of two globular polypeptides, α-tubulin and β-tubulin.
See also: dynein.

tubulin

/tu·bu·lin/ (too´bu-lin) the constituent protein of microtubules.

tubulin

(to͞o′byə-lĭn, tyo͞o′-)
n.
A globular protein that is the basic structural constituent of microtubules.

tu·bu·lin

(tū'byū-lin)
A protein subunit of microtubules; it is a dimer composed of two globular polypeptides, α-tubulin and β-tubulin.
See also: dynein

tubulin

A contractile protein that forms microtubules. These form the spindle fibres in MITOSIS that draw chromosomes apart is the course of cell division.

tubulin

a globular protein molecule, similar to ACTIN, that is the building block of microtubules within the cytoplasm of cells.

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.
References in periodicals archive ?
The occurrence of distantly related beta- and gamma-tubulin genes resulting from ancient duplications and the large number of alpha-tubulin gene copies seen in the C.
Potential insights from further studies of the Ceratopteris alpha-tubulin gene family.
Consider the comparison presented earlier between the alpha-tubulin genes of Arabidopsis and those of Ceratopteris.
By comparison with the alpha-tubulin genes of Arabidopsis, amino acid sequences of the four known alpha-tubulin genes of Ceratopteris appear somewhat diverse, suggesting selective pressures favoring the origin or maintenance of alpha-tubulin variation in this fern.
richardii alpha-tubulin family, relates to gene expression.
Based on the phenotypes of the above mutants, it is likely that the defect associated with some of them may involve either an alpha-tubulin gene itself, a gene that controls expression of an alpha-tubulin gene, or a gene for another protein that interacts with alpha-tubulin.
One may also study the roles of the various alpha-tubulin genes by utilizing recently developed methods for inducing gene silencing via RNA interference (RNAi) in spores and gametophytes of Ceratopteris (Stout et al.
Each of the four alpha-tubulin genes described here has at least several portions of its sequence that are not shared by the other known members of this gene family (this is especially evident in the 3' regions of TuaCR1, 2, and 3).
Several potential phenotypes could be easily observable as a result of silencing alpha-tubulin expression in Ceratopteris.