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Ubiquitin


Ubiquitin is a small protein. It marks a target protein for degradation by attaching covalently to the target. Ubiquitinated protein is degraded by proteasome.
Related
Proteasome ...
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ubiquitin-like small protein modifier
Function/Pathway
The Nedd8 conjugation process, called neddylation, is similar to ubiquitination.
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Ubiquitin
a small protein (76 amino acids)
conserved throughout all the kingdoms of life; that is, virtually identical in sequence whether in bacteria, yeast, or mammals.
used by all these creatures to target proteins for destruction.
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ubiquitination and SUMOylation
Various full-length, folded proteins can be attached at their C-termini to the sidechain ammonium groups of lysines of other proteins.
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We have isolated and characterized 5 additional imprinted genes from the 1MB-genomic intervals surrounding human and mouse PEG3, including Zim1 (imprinted Zinc-finger gene 1), Zim2, Zim3, Usp29 (Ubiquitin-specific processing protease 29), and Znf264.
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The 26S proteasome is used for the digestion of ubiquitin-marked proteins. It is located on both sides of a cell's nuclear membrane and consists of a 20S core protease particle and two 19S regulatory particles.
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A giant protein complex that recognizes and destroys proteins tagged for elimination by the small protein ubiquitin.
protoderm
(pro-toh-durm) [Gk. protos, first + derma, skin] ...
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