| Application | Recommended Dilution |
|---|---|
| IF | 1:50-1:200 |
| FC | 1:50-1:200 |
Insulin receptor substrate 1 serves as a critical adaptor protein in insulin and IGF-1 signaling cascades, mediating the cellular response to these growth factors through phosphorylation-dependent recruitment of downstream effectors. Dysregulation of IRS1 signaling has been implicated in insulin resistance, type 2 diabetes, and various cancers, making it a compelling target for researchers investigating metabolic disorders and oncogenic pathways.
This recombinant monoclonal antibody, clone 25B3, offers the reproducibility and consistency that demanding experimental workflows require. Because recombinant antibodies are produced from a defined sequence rather than harvested from animal serum, researchers can expect uniform performance across lots, eliminating the variability that can compromise longitudinal studies or multi-site collaborations. The rabbit IgG format, purified by affinity chromatography, ensures high specificity for the human IRS1 epitope derived from a synthesized peptide.
Validation studies demonstrate reliable performance in both immunofluorescence and flow cytometry applications. In HeLa cells, immunofluorescence staining at dilutions of 1:50 to 1:200 reveals clear cytoplasmic localization patterns consistent with IRS1's known subcellular distribution. Flow cytometry analysis using HepG2 hepatocellular carcinoma cells shows distinct positive population shifts compared to isotype controls, confirming specific detection in this metabolically relevant cell model. These validated human cell lines provide researchers with established starting points for their own experimental optimization.
The unconjugated format allows flexibility in secondary antibody selection, accommodating various detection systems and multiplexing strategies. Whether investigating insulin signaling dynamics, characterizing metabolic phenotypes, or exploring IRS1's role in cellular proliferation, this antibody provides a dependable tool for advancing research in metabolism and cell signaling.
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