Sequestosome 1

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Protein SQSTM1 PDB 1q02.png
Available structures
PDBOrtholog search: PDBe RCSB
AliasesSQSTM1, A170, OSIL, PDB3, ZIP3, p60, p62, p62B, FTDALS3, Sequestosome 1, NADGP, DMRV
External IDsMGI: 107931 HomoloGene: 31202 GeneCards: SQSTM1
Gene location (Human)
Chromosome 5 (human)
Chr.Chromosome 5 (human)[1]
Chromosome 5 (human)
Genomic location for SQSTM1
Genomic location for SQSTM1
Band5q35.3Start179,806,398 bp[1]
End179,838,078 bp[1]
RNA expression pattern
PBB GE SQSTM1 213112 s at fs.png

PBB GE SQSTM1 201471 s at fs.png
More reference expression data
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC)Chr 5: 179.81 – 179.84 MbChr 11: 50.2 – 50.21 Mb
PubMed search[3][4]
View/Edit HumanView/Edit Mouse

Sequestosome-1 is a protein that in humans is encoded by the SQSTM1 gene.[5][6][7] Also known as the ubiquitin-binding protein p62,[8] it is an autophagosome cargo protein that targets other proteins that bind to it for selective autophagy. By interacting with GATA4 and targeting it for degradation, it can inhibit GATA-4 associated senescence and senescence-associated secretory phenotype.[9]

Model organisms[edit]

Model organisms have been used in the study of SQSTM1 function. A conditional knockout mouse line, called Sqstm1tm1a(KOMP)Wtsi[15][16] was generated as part of the International Knockout Mouse Consortium program — a high-throughput mutagenesis project to generate and distribute animal models of disease to interested scientists.[17][18][19]

Male and female animals underwent a standardized phenotypic screen to determine the effects of deletion.[13][20] Twenty two tests were carried out on homozygous mutant mice and one significant abnormality was observed: females had abnormal complete blood count parameters, including an increased red blood cell distribution width and increased mean platelet volume.[13]


Sequestosome 1 has been shown to interact with:


  1. ^ a b c ENSG00000284099 GRCh38: Ensembl release 89: ENSG00000161011, ENSG00000284099 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000015837 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:".
  4. ^ "Mouse PubMed Reference:".
  5. ^ Joung I, Strominger JL, Shin J (July 1996). "Molecular cloning of a phosphotyrosine-independent ligand of the p56lck SH2 domain". Proc Natl Acad Sci U S A. 93 (12): 5991–5. doi:10.1073/pnas.93.12.5991. PMC 39176. PMID 8650207.
  6. ^ Devergne O, Hummel M, Koeppen H, Le Beau MM, Nathanson EC, Kieff E, Birkenbach M (February 1996). "A novel interleukin-12 p40-related protein induced by latent Epstein-Barr virus infection in B lymphocytes". J Virol. 70 (2): 1143–53. PMC 189923. PMID 8551575.
  7. ^ "Entrez Gene: SQSTM1 sequestosome 1".
  8. ^ Online Mendelian Inheritance in Man (OMIM) 601530
  9. ^ Cassidy LD, Narita M (2015). "GATA get a hold on senescence". Science. 349 (6255): 1448–9. doi:10.1126/science.aad2501. PMID 26404812.
  10. ^ "Haematology data for Sqstm1". Wellcome Trust Sanger Institute.
  11. ^ "Salmonella infection data for Sqstm1". Wellcome Trust Sanger Institute.
  12. ^ "Citrobacter infection data for Sqstm1". Wellcome Trust Sanger Institute.
  13. ^ a b c Gerdin AK (2010). "The Sanger Mouse Genetics Programme: High throughput characterisation of knockout mice". Acta Ophthalmologica. 88: 925–7. doi:10.1111/j.1755-3768.2010.4142.x.
  14. ^ Mouse Resources Portal, Wellcome Trust Sanger Institute.
  15. ^ "International Knockout Mouse Consortium".
  16. ^ "Mouse Genome Informatics".
  17. ^ Skarnes WC, Rosen B, West AP, Koutsourakis M, Bushell W, Iyer V, Mujica AO, Thomas M, Harrow J, Cox T, Jackson D, Severin J, Biggs P, Fu J, Nefedov M, de Jong PJ, Stewart AF, Bradley A (2011). "A conditional knockout resource for the genome-wide study of mouse gene function". Nature. 474 (7351): 337–342. doi:10.1038/nature10163. PMC 3572410. PMID 21677750.
  18. ^ Dolgin E (2011). "Mouse library set to be knockout". Nature. 474 (7351): 262–3. doi:10.1038/474262a. PMID 21677718.
  19. ^ Collins FS, Rossant J, Wurst W (2007). "A Mouse for All Reasons". Cell. 128 (1): 9–13. doi:10.1016/j.cell.2006.12.018. PMID 17218247.
  20. ^ van der Weyden L, White JK, Adams DJ, Logan DW (2011). "The mouse genetics toolkit: revealing function and mechanism". Genome Biol. 12 (6): 224. doi:10.1186/gb-2011-12-6-224. PMC 3218837. PMID 21722353.
  21. ^ Shvets E, Fass E, Scherz-Shouval R, Elazar Z (August 2008). "The N-terminus and Phe52 residue of LC3 recruit p62/SQSTM1 into autophagosomes". J. Cell Sci. 121 (Pt 16): 2685–95. doi:10.1242/jcs.026005. PMID 18653543.
  22. ^ Sanchez P, De Carcer G, Sandoval IV, Moscat J, Diaz-Meco MT (May 1998). "Localization of atypical protein kinase C isoforms into lysosome-targeted endosomes through interaction with p62". Mol. Cell. Biol. 18 (5): 3069–80. doi:10.1128/mcb.18.5.3069. PMC 110686. PMID 9566925.
  23. ^ Rual JF, Venkatesan K, Hao T, Hirozane-Kishikawa T, Dricot A, Li N, Berriz GF, Gibbons FD, Dreze M, Ayivi-Guedehoussou N, Klitgord N, Simon C, Boxem M, Milstein S, Rosenberg J, Goldberg DS, Zhang LV, Wong SL, Franklin G, Li S, Albala JS, Lim J, Fraughton C, Llamosas E, Cevik S, Bex C, Lamesch P, Sikorski RS, Vandenhaute J, Zoghbi HY, Smolyar A, Bosak S, Sequerra R, Doucette-Stamm L, Cusick ME, Hill DE, Roth FP, Vidal M (October 2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. doi:10.1038/nature04209. PMID 16189514.
  24. ^ Sanz L, Sanchez P, Lallena MJ, Diaz-Meco MT, Moscat J. "The interaction of p62 with RIP links the atypical PKCs to NF-kappaB activation". EMBO J. 18 (11): 3044–53. doi:10.1093/emboj/18.11.3044. PMC 1171386. PMID 10356400.
  25. ^ Sanz L, Diaz-Meco MT, Nakano H, Moscat J (April 2000). "The atypical PKC-interacting protein p62 channels NF-kappaB activation by the IL-1-TRAF6 pathway". EMBO J. 19 (7): 1576–86. doi:10.1093/emboj/19.7.1576. PMC 310227. PMID 10747026.
  26. ^ Wooten MW, Seibenhener ML, Mamidipudi V, Diaz-Meco MT, Barker PA, Moscat J (March 2001). "The atypical protein kinase C-interacting protein p62 is a scaffold for NF-kappaB activation by nerve growth factor". J. Biol. Chem. 276 (11): 7709–12. doi:10.1074/jbc.C000869200. PMID 11244088.
  27. ^ a b Geetha T, Wooten MW (February 2003). "Association of the atypical protein kinase C-interacting protein p62/ZIP with nerve growth factor receptor TrkA regulates receptor trafficking and Erk5 signaling". J. Biol. Chem. 278 (7): 4730–9. doi:10.1074/jbc.M208468200. PMID 12471037.
  28. ^ a b Jadhav T, Geetha T, Jiang J, Wooten MW. "Identification of a consensus site for TRAF6/p62 polyubiquitination". Biochem. Biophys. Res. Commun. 371 (3): 521–4. doi:10.1016/j.bbrc.2008.04.138. PMC 2474794. PMID 18457658.
  29. ^ Wooten MW, Geetha T, Babu JR, Seibenhener ML, Peng J, Cox N, Diaz-Meco MT, Moscat J (March 2008). "Essential role of sequestosome 1/p62 in regulating accumulation of Lys63-ubiquitinated proteins". J. Biol. Chem. 283 (11): 6783–9. doi:10.1074/jbc.M709496200. PMID 18174161.
  30. ^ Feng, Lifeng et al. “Tamoxifen activates Nrf2-dependent SQSTM1 transcription to promote endometrial hyperplasia” Theranostics vol. 7,7 1890-1900. 10 Apr. 2017, doi:10.7150/thno.19135

Further reading[edit]