Use at an assay dependent concentration. Can be paired for Sandwich ELISA with Rabbit monoclonal [PSH07-63] to Human IL-13R alpha 2 antibody (Capture) (HA722880) and recombinant Human IL-13R alpha 2 protein (HA210969) as the standard. The reference range value is 0.247-20 ng/mL.
ELISA
Use at an assay dependent concentration.
Target
Function
The protein encoded by this gene is closely related to Il13RA1, a subuint of the interleukin 13 receptor complex. This protein binds IL13 with high affinity, but lacks cytoplasmic domain, and does not appear to function as a signal mediator. It is reported to play a role in the internalization of IL13.
Background References
1. Lupardus P.J., Birnbaum M.E., Garcia K.C. Molecular basis for shared cytokine recognition revealed in the structure of an unusually high affinity complex between IL-13 and IL-13Ralpha2. Structure 18:332-342 (2010)
Sandwich ELISA analysis of Human IL-13 R alpha 2 matched pair antibodies Elisa assay was performed by coating wells of a 96-well plate with 50 µl per well of capture antibody (HA722880) 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 Rrecombinant Human IL-13R alpha 2 protein (HA210969) starting from 18,000 pg/ml to 0 pg/ml and detect antibody (HA722882B, 0.2 µg/ml) for 1 hour at 30℃ with shaking. Then the plate was washed and incubated with 50 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.
Interpolated concentrations of native human IL-13 R alpha 2 in U-87 MG extract samples based on a 1,000 µg/ml extract load. The concentrations of human IL-13 R alpha 2 were interpolated from the human IL-13 R alpha 2 standard curve and corrected for sample dilution. Undiluted samples are U-87 MG extract 50%. The mean human IL-13 R alpha 2 concentration was determined to be 4,569 pg/ml in U-87 MG extract.
Interpolated concentrations of native human IL-13 R alpha 2 in A375 extract samples based on a 1,000 µg/ml extract load. The concentrations of human IL-13 R alpha 2 were interpolated from the human IL-13 R alpha 2 standard curve and corrected for sample dilution. Undiluted samples are A375 extract 10%. The mean human IL-13 R alpha 2 concentration was determined to be 123.1 ng/ml in A375 extract.
Interpolated concentrations of spiked IL-13 R alpha 2 in human cell culture media samples. The concentrations of IL-13 R alpha 2 were interpolated from the IL-13 R alpha 2 standard curves and corrected for sample dilution. Undiluted samples are as follows: cell culture media 50%.
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