Ubiquitin Structure & Function: Difference between revisions

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[[Image:1ubiq.png|300 px|right]]
[[Image:1ubiq.png|300 px|right]]
=Function=
=Function=
At first, ubiquitin was believed to be a hormone involed in inducing the differentiation of lymphocytes and activating adenylate cyclase <ref>Vijay-Kumar, S., Begg, CE., Wilkinson, KD and Cook, WJ. 1985. Three-dimensional structure of ubiquitin of 2.8 angstrom resolution. ''Proc Natl Acad Sci'' 82:3582-3585</ref>.  However, today ubiquitin is primarily known for its role in intracellular ATP-dependent protein degradation.  This is accomplished by the formation of covalent conjugates between carboxyl terminals of ubiquitin and the target protein.
At first, ubiquitin was believed to be a hormone involed in inducing the differentiation of lymphocytes and activating adenylate cyclase <ref>Vijay-Kumar, S., Begg, CE., Wilkinson, KD and Cook, WJ. 1985. Three-dimensional structure of ubiquitin of 2.8 angstrom resolution. ''Proc Natl Acad Sci'' 82:3582-3585</ref>.  However, today ubiquitin is primarily known for its role in intracellular ATP-dependent protein degradation.  This is accomplished through the process of 4 seperate reactions:
[[Image:Ubq_pathway.png|500 px|center]]
[[Image:Ubq_pathway.png|500 px|center]]
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