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ubiquitin

Pronunciation: u-bik'kwi-tin

Definition: A small (76 amino acyl residues) protein found in all cells of higher organisms and one with a structure that has changed minimally during evolutionary history; involved in at least two processes; histone modification and intracellular protein breakdown.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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