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Proteasome

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{{STRUCTURE_3gpt| PDB=3gpt | SIZE=400| SCENE= |right|CAPTION=Proteasome complex with salinosporamide derivative, [[3gpt]] }}
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{{STRUCTURE_3gpt| PDB=3gpt | SIZE=400| SCENE= |right|CAPTION=Yeast proteasome 20S core complex with salinosporamide derivative, [[3gpt]] }}
[[Proteasome]] (PRTS) are large protein complexes which degrade unneeded proteins into small polypeptides<ref>PMID:22350895</ref>. The '''26S PRTS''' is composed of a central '''20S core particle''' which contains 4 stacked rings each with several members and two 19S caps. The core particle two outer rings contain 7 α subunits which form the PRTS gate. The two inner rings contain 6 β subunits with protease activity. The 19S cap is composed of a base with 10 proteins six of which are ATPases and a lid which contains 9 proteins which bind polyubiquitin. <br />
[[Proteasome]] (PRTS) are large protein complexes which degrade unneeded proteins into small polypeptides<ref>PMID:22350895</ref>. The '''26S PRTS''' is composed of a central '''20S core particle''' which contains 4 stacked rings each with several members and two 19S caps. The core particle two outer rings contain 7 α subunits which form the PRTS gate. The two inner rings contain 6 β subunits with protease activity. The 19S cap is composed of a base with 10 proteins six of which are ATPases and a lid which contains 9 proteins which bind polyubiquitin. <br />

Revision as of 10:26, 13 July 2016

Template:STRUCTURE 3gpt

Proteasome (PRTS) are large protein complexes which degrade unneeded proteins into small polypeptides[1]. The 26S PRTS is composed of a central 20S core particle which contains 4 stacked rings each with several members and two 19S caps. The core particle two outer rings contain 7 α subunits which form the PRTS gate. The two inner rings contain 6 β subunits with protease activity. The 19S cap is composed of a base with 10 proteins six of which are ATPases and a lid which contains 9 proteins which bind polyubiquitin.
For more details see 3unb.

3D Structures of Proteasome

Updated on 13-July-2016

References

  1. ↑ Saeki Y, Tanaka K. Assembly and function of the proteasome. Methods Mol Biol. 2012;832:315-37. doi: 10.1007/978-1-61779-474-2_22. PMID:22350895 doi:http://dx.doi.org/10.1007/978-1-61779-474-2_22

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Michal Harel, Alexander Berchansky, Jaime Prilusky, Joel L. Sussman

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