Human Phospho-Insulin R DuoSet IC ELISA Summary

Product Summary

This DuoSet IC ELISA contains the basic components required for the development of sandwich ELISAs to measure tyrosine-phosphorylated human Insulin R / CD220 in cell lysates. An immobilized capture antibody specific for Insulin R / CD220 binds both phosphorylated and unphosphorylated Insulin R / CD220. After washing away unbound material, a biotinylated detection antibody is used to detect only phosphorylated receptor, utilizing a standard HRP format.

Preparation and Storage

Background: Insulin R/CD220

Insulin Receptor (INSR, CD220) is a type I transmembrane glycoprotein in the Insulin/IGF Receptor family of receptor tyrosine kinases. The mature receptor contains an extracellular alpha subunit and an extracellular/transmembrane/cytoplasmic beta subunit. Alternative splicing generates A and B isoforms which may homodimerize or heterodimerize with the IGF-I receptor. All receptor combinations bind Insulin, IGF-I, or IGF-II, but with differing affinities. Insulin R signaling regulates glucose uptake and metabolism but also contributes to cell growth, differentiation and apoptosis. Mutations in INSR have been linked to severe insulin resistance (type A and Rabson-Mendenhall syndrome), type II diabetes mellitus, and leprechaunism (Donohue syndrome).

Assay Procedure

Refer to the product datasheet for the complete assay procedure.

Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.

1、Prepare all reagents, standard dilutions, and samples as directed in the product insert.

2、Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.

3、Add 50 μL of Assay Diluent to each well.

4、Add 50 μL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours.

5、Aspirate each well and wash, repeating the process 4 times for a total of 5 washes.

6、Add 100 μL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 2 hours.

7、Aspirate and wash 5 times.

8、Add 100 μL Substrate Solution to each well.

9、Add 100 μL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.