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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.
A small protein found in all eukaryotic cells that attaches to other proteins, thereby regulating their activity or location or marking them for degradation.
a small polypeptide that is involved in histone modification and is a marker for intracellular protein transport and breakdown. It is found in all cells of higher organisms.
A small protein found in all cells of higher organisms; its structure has changed minimally during evolutionary history; involved in histone modification and intracellular protein breakdown.
ubiquitinA small 76-residue protein found in all animal cells and known to have altered minimally throughout evolutionary history. Ubiquitin is linked by covalent bonds to proteins destined for destruction by PROTEASOMES.
ubiquitina small PROTEIN, present in all eukaryotic cells (ubiquitous protein), containing a highly conserved sequence of 76 AMINO ACIDS, that is identical in a wide range of organisms including humans, fish and insects. Ubiquitin is involved in a number of cellular functions, such as protein degradation and modifications to CHROMATIN structure.
n a 76-amino acid polypeptide from modification of histones; present in yeast and in most eukaryotic cells.
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.