Sestrin-2 also known as Hi95 is a protein that in humans is encoded by the SESN2 gene. 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. 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.
Background References
1. Xu L et al. SESN2 Could Be a Potential Marker for Diagnosis and Prognosis in Glioma. Genes (Basel). 2023 Mar
2. Wang B J et al. Regulatory mechanisms of Sesn2 and its role in multi-organ diseases. Pharmacol Res. 2021 Feb
Western blot analysis of SESN2 / Sestrin-2 on different lysates with Rabbit anti-SESN2 / Sestrin-2 antibody (HA722489) at 1/2,000 dilution.
Lane 1: K-562 cell lysate Lane 2: HEK-293 cell lysate Lane 3: 293T cell lysate Lane 4: HCT 116 cell lysate Lane 5: LoVo cell lysate Lane 6: HepG2 cell lysate Lane 7: Jurkat cell lysate Lane 8: U-87 MG cell lysate Lane 9: NIH/3T3 cell lysate Lane 10: RAW264.7 cell lysate Lane 11: C6 cell lysate Lane 12: PC-12 cell lysate
Lysates/proteins at 20 µg/Lane.
Predicted band size: 54 kDa Observed band size: 54 kDa
Exposure time: Lane 1-8: 1 minute 18 seconds; Lane 9-12: 3 minutes; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA722489) at 1/2,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
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