Ubiquitin meaning

yo͝o-bĭk'wĭ-tĭn
A polypeptide consisting of 76 amino acids and found in all eukaryotic cells, whose main cellular function is to tag other proteins that will undergo degradation.
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A small protein found in all eukaryotic cells that attaches to other proteins, thereby regulating their activity or location or marking them for degradation.
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Origin of ubiquitin

  • ubiquit(ous) –in
    From American Heritage Dictionary of the English Language, 5th Edition