Pericentrin is a 220 kD protein with a putative
large coiled-coil domain flanked by noncoiled ends. Present in
centrosomes and acentriolar microtubule-organizing centers, where
the protein is localized to the pericentriolar material. Pericentrin
is probably a conserved integral component of the filamentous matrix
of the centrosome involved in the initial establishment of organized
microtubule arrays.
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