Superoxide dismutase 1 Human ELISA

Research topic

Oxidative stress

Storage/Shipping

All kit components of this kit are stable at 2 to 8°C. Any unused reconstituted standard should be discarded or frozen at –70°C. Standard can be frozen and thawed one time only without loss of immunoreactivity.

Summary

Superoxide dismutase (SOD) is an antioxidant enzyme involved in the defense system against reactive oxygen species (ROS). SOD catalyzes the dismutation reaction of superoxide radical anion (O2-) to hydrogen peroxide, which is then catalyzed to innocuous O2 and H2O by glutathione peroxidase and catalase. Several classes of SOD have been identified. : Cu/Zn SOD (SOD1) is localized in cytosol, Mn SOD (SOD2) in mitochondria, and ecSOD (SOD3) in extracellular space. Cu/Zn SOD (SOD1) is a homodimer containing copper and zinc that is found almost exclusively in intracellular cytoplasmic spaces. The level of SOD1 elevates in response to a wide array of mechanical, chemical and biological messengers such as heat shock, shear stress, and UVB- and X-irradiation. Decreased levels of SOD1 expression can also be triggered by activation of the AP2 transcription factor. A down-regulation of SOD1 has been shown in alveolar type II epithelial cells and lung fibroblasts after exposure to hypoxia.

Assay format

Sandwich ELISA, HRP-labelled antibody

Applications

Cell lysate, Plasma, Serum

Calibration range

0–800 pg/ml

Limit of detection

12.5 pg/ml

Intra-assay (Within-Run, n=5)

CV = 5.4 %

Inter-assay (Run-to-Run, n=8)

CV = 7.2 %