Sequestosome

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== Function ==
== Function ==
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'''Sequestosome''' (SQS) or '''p62''', is required for the formation and autophagic degredation of polyubiquitin-containg bodies. SQS may regulate signaling cascades through ubiquitination<ref>PMID:15340068</ref>.
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'''Sequestosome''' (SQS) or '''p62''', is required for the formation and autophagic degredation of polyubiquitin-containg bodies. SQS may regulate signaling cascades through ubiquitination.
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== Structural highlights ==
SQS is a multi-domain protein. SQS domain structure includes: <br />
SQS is a multi-domain protein. SQS domain structure includes: <br />
PB1 domain which contains Phox and Berm1<br />
PB1 domain which contains Phox and Berm1<br />
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LIR – interaction region<br />
LIR – interaction region<br />
UBA – ubiquitin association domain.
UBA – ubiquitin association domain.
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== Disease ==
 
== Relevance ==
== Relevance ==
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SQS is associated with fibrillary tangles in Alzheimer disease<ref>PMID:22138392</ref>.
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== Structural highlights ==
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==3D structures of sequestosome==
==3D structures of sequestosome==

Revision as of 06:46, 25 August 2016

Structure of human sequestosome UBA domain (PDB code 2jy8)

Drag the structure with the mouse to rotate

References

  1. Seibenhener ML, Babu JR, Geetha T, Wong HC, Krishna NR, Wooten MW. Sequestosome 1/p62 is a polyubiquitin chain binding protein involved in ubiquitin proteasome degradation. Mol Cell Biol. 2004 Sep;24(18):8055-68. PMID:15340068 doi:10.1128/MCB.24.18.8055-8068.2004
  2. Salminen A, Kaarniranta K, Haapasalo A, Hiltunen M, Soininen H, Alafuzoff I. Emerging role of p62/sequestosome-1 in the pathogenesis of Alzheimer's disease. Prog Neurobiol. 2012 Jan;96(1):87-95. doi: 10.1016/j.pneurobio.2011.11.005. Epub , 2011 Nov 22. PMID:22138392 doi:http://dx.doi.org/10.1016/j.pneurobio.2011.11.005

Proteopedia Page Contributors and Editors (what is this?)

Michal Harel

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