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ubiquitin

   Also found in: Acronyms, Wikipedia 0.07 sec.
u·biq·ui·tin (y-bkw-tn)
n.
A polypeptide found in all eukaryotic cells, including plant cells, that participates in a variety of cellular functions including protein degradation.

ubiquitin
[yo̅o̅bik′witin]
a small polypeptide that is involved in histone modification and is a marker for intracellular protein transport and degradation. It is found in all cells of higher organisms.

ubiquitin (yōōˈ·biˑ·kwi·tin),
n a 76-amino acid polypeptide from modification of histones; present in yeast and in most eukaryotic cells.

ubiquitin
heat shock (cell stress) protein present in mammalian cytosol; attaches to other cytosolic proteins and marks them for degradation either by specific proteases or by lysosomal enzymes.


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