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Capping

1. Movement of cross linked cell surface material to the posterior region of a moving cell or to the perinuclear region.

2. The intracellular accumulation of intermediate filament protein in the pericentriolar region following microtubule disruption by colchicine.

3. The blocking of further addition of subunits by binding of a cap protein to the free end of a linear polymer such as actin.

See: cap binding protein.