Product Pathways - PathScan ELISA
PathScan® Phospho-IGF-I Receptor β (Tyr1131) Sandwich ELISA Antibody Pair #7820
|Kit Includes||Volume||Cap Color|
|P-IGF-I Receptor beta(Y1131) Capture Ab (100X)||0.4 ml||Pink|
|IGF-I Receptor Detection Ab (100X)||0.4 ml||Blue|
|Anti-mouse IgG, HRP-linked Antibody (1000X)||0.04 ml||Yellow|
Capture and detection antibodies are stored at 4°C. HRP-linked secondary reagent is stored at -20°C.
Species enclosed in parentheses are predicted to react based on 100% sequence homology.
CST's PathScan® Phospho-IGF-I Receptor β (Tyr1131) Sandwich ELISA Antibody Pair is offered as an economical alternative to our PathScan® Phospho-IGF-I Receptor β (Tyr1131) Sandwich ELISA Kit #7302. Capture and detection antibodies (100X stocks) and HRP-linked secondary antibody (1000X stock) are supplied. Sufficient reagents are supplied for 4 x 96 well ELISAs. The phospho-IGF-I receptor β (Tyr1131) capture antibody is coated on a 96 well microplate in PBS overnight. After blocking, cell lysates are added followed by an IGF-I receptor detection antibody and anti-mouse IgG, HRP-linked antibody. HRP substrate, TMB, is added for color development. The magnitude of the absorbance for this developed color is proportional to the quantity of phospho-IGF-I receptor β (Tyr1131) protein.Antibodies in kit are custom formulations specific to kit.
Specificity / Sensitivity
For Antibody Pair specificity and sensitivity, please refer to the corresponding PathScan® Sandwich ELISA Kit. Note: This antibody pair detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.
The relationship between protein concentration of lysates from untreated or IGF-I-treated MCF-7 cells and the absorbance at 450 nm using PathScan® Phospho-IGF-I Receptor β (Tyr1131) Sandwich ELISA Antibody Pair is shown. Cells were serum starved overnight, treated with 100 nm IGF-I at 37°C for 5 minutes, and then lysed.
Type I insulin-like growth factor receptor (IGF-IR) is a transmembrane receptor tyrosine kinase that is widely expressed in many cell lines and cell types within fetal and postnatal tissues (1-3). Receptor autophosphorylation follows binding of the IGF-I and IGF-II ligands. Three tyrosine residues within the kinase domain (Tyr1131, Tyr1135, and Tyr1136) are the earliest major autophosphorylation sites (4). Phosphorylation of these three tyrosine residues is necessary for kinase activation (5,6). Insulin receptors (IRs) share significant structural and functional similarity with IGF-I receptors, including the presence of an equivalent tyrosine cluster (Tyr1146/1150/1151) within the kinase domain activation loop. Tyrosine autophosphorylation of IRs is one of the earliest cellular responses to insulin stimulation (7). Autophosphorylation begins with phosphorylation at Tyr1146 and either Tyr1150 or Tyr1151, while full kinase activation requires triple tyrosine phosphorylation (8).
- Adams, T.E. et al. (2000) Cell. Mol. Life Sci. 57, 1050-1093.
- Baserga, R. et al. (2000) Oncogene 19, 5574-5581.
- Scheidegger, K.J. et al. (2000) J. Biol. Chem. 275, 38921-38928.
- Hernandez-Sanchez, C. et al. (1995) J. Biol. Chem. 270, 29176-29181.
- Lopaczynski, W. et al. (2000) Biochem. Biophys. Res. Commun. 279, 955-960.
- Baserga, R. et al. (1999) Exp. Cell Res. 253, 1-6.
- White, M.F. et al. (1985) J. Biol. Chem. 260, 9470-9478.
- White, M.F. et al. (1988) J. Biol. Chem. 263, 2969-2980.
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- 7302 PathScan® Phospho-IGF-I Receptor β (Tyr1131) Sandwich ELISA Kit
- 3021 Phospho-IGF-I Receptor β (Tyr1131)/Insulin Receptor β (Tyr1146) Antibody
- 3024 Phospho-IGF-I Receptor β (Tyr1135/1136)/Insulin Receptor β (Tyr1150/1151) (19H7) Rabbit mAb
- 3018 IGF-I Receptor β (111A9) Rabbit mAb
- 3027 IGF-I Receptor β Antibody
- 7076 Anti-mouse IgG, HRP-linked Antibody
- 9803 Cell Lysis Buffer (10X)
- 9808 Phosphate Buffered Saline (PBS-20X)
- 9809 Phosphate Buffered Saline with Tween 20 (PBST-20X)
- 9998 BSA
- 7004 TMB Substrate
- 7002 STOP Solution
For Research Use Only. Not For Use In Diagnostic Procedures.