SESN2

Sestrin 2
Identifiers
Symbols	SESN2 ; HI95; SES2; SEST2
External IDs	OMIM: 607767 MGI: 2651874 HomoloGene: 12873 GeneCards: SESN2 Gene
Gene ontology Molecular function • protein binding Cellular component • nucleus • cytoplasm • mitochondrion • cytosol Biological process • transcription initiation from RNA polymerase II promoter • fatty acid beta-oxidation • autophagy • response to glucose • gene expression • mitochondrial DNA metabolic process • response to insulin • protein kinase B signaling • glucose import • triglyceride homeostasis • regulation of gluconeogenesis involved in cellular glucose homeostasis • regulation of response to reactive oxygen species • regulation of cAMP-dependent protein kinase activity Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	83667	230784
Ensembl	ENSG00000130766	ENSMUSG00000028893
UniProt	P58004	P58043
RefSeq (mRNA)	NM_031459	NM_144907
RefSeq (protein)	NP_113647	NP_659156
Location (UCSC)	Chr 1: 28.26 – 28.28 Mb	Chr 4: 132.49 – 132.51 Mb
PubMed search

Sestrin-2 also known as Hi95 is a protein that in humans is encoded by the SESN2 gene.^[1][2][3]

Function

This gene encodes a member of the sestrin family of PA26-related proteins. The encoded protein may function in the regulation of cell growth and survival. This protein may be involved in cellular response to different stress conditions.^[3][4] The Sestrins constitute a family of evolutionarily-conserved stress-inducible proteins that suppress oxidative stress and regulate adenosine monophosphate-dependent protein kinase (AMPK)- mammalian target of rapamycin (mTOR) signaling. By virtue of these activities, the Sestrins serve as important regulators of metabolic homeostasis. Accordingly, inactivation of Sestrin genes in invertebrates resulted in diverse metabolic pathologies, including oxidative damage, fat accumulation, mitochondrial dysfunction and muscle degeneration that resemble accelerated tissue aging.^[3][5]

See also

• SESN1

References

1. Peeters H, Debeer P, Bairoch A, Wilquet V, Huysmans C, Parthoens E, Fryns JP, Gewillig M, Nakamura Y, Niikawa N, Van de Ven W, Devriendt K (Apr 2003). "PA26 is a candidate gene for heterotaxia in humans: identification of a novel PA26-related gene family in human and mouse". Hum Genet 112 (5–6): 573–80. doi:10.1007/s00439-003-0917-5. PMID 12607115.
2. Budanov AV, Shoshani T, Faerman A, Zelin E, Kamer I, Kalinski H, Gorodin S, Fishman A, Chajut A, Einat P, Skaliter R, Gudkov AV, Chumakov PM, Feinstein E (Aug 2002). "Identification of a novel stress-responsive gene Hi95 involved in regulation of cell viability". Oncogene 21 (39): 6017–31. doi:10.1038/sj.onc.1205877. PMID 12203114.
3. "Entrez Gene: SESN2 sestrin 2".
4. Lee JH, Bodmer R, Bier E, Karin M (June 2010). "Sestrins at the crossroad between stress and aging". Aging (Albany NY) 2 (6): 369–74. PMC 2919257. PMID 20606249.
5. Lee JH, Budanov AV, Karin M (Dec 2013). "Sestrins orchestrate cellular metabolism to attenuate aging". Cell Metab 18 (6): 792–801. doi:10.1016/j.cmet.2013.08.018. PMC 3858445. PMID 24055102.

Further reading

• Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The Status, Quality, and Expansion of the NIH Full-Length cDNA Project: The Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• Budanov AV, Sablina AA, Feinstein E, et al. (2004). "Regeneration of peroxiredoxins by p53-regulated sestrins, homologs of bacterial AhpD". Science 304 (5670): 596–600. doi:10.1126/science.1095569. PMID 15105503.
• Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Simpson JC, Wellenreuther R, Poustka A, et al. (2001). "Systematic subcellular localization of novel proteins identified by large-scale cDNA sequencing". EMBO Rep. 1 (3): 287–92. doi:10.1093/embo-reports/kvd058. PMC 1083732. PMID 11256614.
• Wiemann S, Weil B, Wellenreuther R, et al. (2001). "Toward a Catalog of Human Genes and Proteins: Sequencing and Analysis of 500 Novel Complete Protein Coding Human cDNAs". Genome Res. 11 (3): 422–35. doi:10.1101/gr.GR1547R. PMC 311072. PMID 11230166.