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Sestrin-2 ELISA Kit (SESN2)

Full Name: Sestrin-2 ELISA Kit (SESN2)
Reactivity: Human
Sample Type: Biological Fluids, Plasma, Tissue Homogenates, Serum
Sensitivity: 0.094 ng/ml

INTRODUCTION

Sestrin-2 belongs to the family of globin-like α-helix-fold proteins, consisting of 23 helices and no β-sheets. It functions in the regulation of cell growth and survival. It has a protective effect on physiological and pathological states mainly via regulating, oxidative stress, endoplasmic reticulum stress, autophagy, metabolism and inflammation. It displays 33% sequence identity to “globin-like” proteins. It is encoded by the SESN2 gene, which is a nonsense mutation causing the loss of all the original amino acids present in its translated form (the deletion removes all stop codons and three of four start codons). This deletion likely occurred during evolutionary history and has resulted in a protein without any functional regions. Humans and rats both contain this protein, but birds do not. Additionally, the SESN2 gene deletion may contribute to a person’s increased vulnerability to sudden cardiac arrhythmia-related death. It has been discovered that this deletion mutation causes autosomal dominant inheritance of cardiac arrhythmias in people with Smith-Magenis syndrome (i.e., specific mutations result abnormalities).

Sestrin-2 is a highly conserved stress-induced protein that is expressed in mammals. It is secreted by cells such as macrophages, T lymphocytes and epithelial cells. It has a paradoxical role in tumor suppression and progression. Its expression has regulatory properties and prognostic value in lung cancer cells. It is a highly conserved stress-induced protein that is expressed in mammals. It is an important cellular regulator that binds to the active form of caspase 3 to prevent apoptosis in cells. It has been identified as a potential therapeutic target for diseases associated with cell death, such as cancer and neurodegenerative disorders. By inhibiting caspase 3 activation, it can protect cells from programmed cell death and maintain healthy cellular function.

INTENDED USE

Human sestrin-2 ELISA kit can detect amounts of SESN2 (sestrin-2, Hi95, SEST2) present is plasma, serum, biological fluids and tissue homogenate samples.

CONTENT

All reagents supplied need to be stored at 2 °C – 8 °C, unopened reagents will retain reactivity until expiration date. Do not use reagents beyond this date.

  • One 96-Well Plate: Pre-coated with anti-SESN2 antibody.
  • Standards: Lyophilized recombinant.
  • Sample/Standard Dilution Buffer.
  • Biotinylated-labelled Antibody.
  • Antibody Dilution Buffer.
  • HRP-Streptavidin Conjugate (SABC).
  • SABC Dilution Buffer.
  • TMB Substrate.
  • Wash Buffer (25x).
  • Plate Sealer.
  • Product Instructions.

TYPICAL RESULTS

For this sestrin-2 ELISA kit it is recommended that a standard curve is generated for each assay carried out.

Standard Curve: 0, 0.156, 0.312, 0.625, 1.25, 2.5, 5, 10 pg/ml.
Reactivity: Human
Sensitivity: 0.094 ng/ml
Range: 0.156 – 10 ng/ml
Principle: Sandwich
Application: Research Use Only.

ASSAY CHARACTERISTICS

– Specificity: Highly specific for SESN2, no cross reactivity or interference between SESN2 and analogues was detected.
– Recovery: Serum (83 – 101%), EDTA Plasma (89 – 104%), Heparin Plasma (90 – 99%).
– Linearity: Serum (86 – 96%), EDTA Plasma (85 – 100%), Heparin Plasma (88 – 96%).
– Precison Intra-Assay: CV < 8%.
– Precison Inter-Assay: CV < 10%.
– Stability: Less than 10%.

REFERENCES

  1. Sestrin 2, a potential star of antioxidant stress in cardiovascular diseases. Free Radic Biol Med. (2021) 163: 56-68. Liu Y., et al.
  2. Endoplasmic reticulum stress-mediated induction of SESTRIN 2 potentiates cell survival. . (2016) 7 (11): 12254-66. Saveljeva S., et al.
  3. Upregulation of sestrin 2_expression via JNK pathway activation contributes to autophagy induction in cancer cells. Cell Signal. (2013) 25 (1): 150-8. Zhang X.Y., et al.

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