Human IL-31, C-Flag Tag Protein
cat.: HA210923
| Product name: | Human IL-31, C-Flag Tag |
|---|---|
| Catalog No.: | HA210923 |
| Bio-Activity: | Testing in progress. |
| Purity: | >95% as determined by SDS-PAGE. |
| Endotoxin: | Less than 1.0 EU per μg by the LAL method. |
| Formulation: | Lyophilized from a 0.2 μm filtered solution of PBS, pH7.4, 5% Trehalose, 5% mannitol. |
| Background: | Interleukin-31 (IL-31) is a protein that in humans is encoded by the IL31 gene that resides on chromosome 12. IL-31 is an inflammatory cytokine that helps trigger cell-mediated immunity against pathogens. It has also been identified as a major player in a number of chronic inflammatory diseases, including atopic dermatitis. IL-31 is produced by a variety of cells, namely type 2 helper (TH2) T-cells. IL-31 sends signals through a receptor complex made of IL-31RA and oncostatin M receptor β (OSMRβ) expressed in immune and epithelial cells. These signals activate three pathways: ERK1/2 MAP kinase, PI3K/AKT, and JAK1/2 signaling pathways. |
| Source: | HEK293 |
| Storage: | Please avoid repeated freeze-thaw cycles. Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃ It is recommended that aliquot the reconstituted solution to minimize freeze-thaw cycles. |
| Reconstitution: | Reconstitute at 250 μg/ml in sterile water. |
Images
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Fig1: Protein on SDS-PAGE under reducing (R) condition. |
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Fig2:
Standard curve of human IL31 matched pair antibodies: Sandwich ELISA analysis of human IL31 matched pair antibodies Elisa assay was performed by coating wells of a 96-well plate with 100 µl per well of capture antibody (HA721931) diluted in carbonate/bicarbonate buffer, at a concentration of 2 µg/ml overnight at 4℃. Wells of the plate were washed, blocked with 150 µl 0.05% tween-20 1% BSA blocking buffer, and incubated with serial diluted human IL31 protein (HA210923) starting from 3800 pg/ml to 0 pg/ml and detect antibody (HA721932, Biotin, 0.2 µg/ml) for 1 hour at 30℃ with shaking. Then the plate was washed and incubated with 100 µl per well of SA-HRP for 0.5 hour at 30℃ with shaking. Detection was performed using an Ultra TMB Substrate for 10 minutes at room temperature in the dark. The reaction was stopped with sulfuric acid and absorbances were read on a spectrophotometer at 450 nm. |
Note: All products are “FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE”.