Revision 6

#7258Store at +4C

1 Kit

(96 assays)

Species Cross Reactivity

H M

UniProt ID:

#P06213

Entrez-Gene Id:

#3643

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Product Includes Product # Quantity Color Storage Temp
Insulin Receptor β Mouse mAb Coated Microwells 70302 96 tests +4C
Phospho-Insulin Receptor β (Tyr1150/1151) Rabbit Detection mAb 12911 1 ea Green (Lyophilized) +4C
Anti-rabbit IgG, HRP-linked Antibody (ELISA Formulated) 13272 1 ea Red (Lyophilized) +4C
Detection Antibody Diluent 13339 11 ml Green +4C
HRP Diluent 13515 11 ml Red +4C
TMB Substrate 7004 11 ml +4C
STOP Solution 7002 11 ml +4C
Sealing Tape 54503 2 ea +4C
ELISA Wash Buffer (20X) 9801 25 ml +4C
ELISA Sample Diluent 11083 25 ml Blue +4C
Cell Lysis Buffer (10X) 9803 15 ml -20C

*The microwell plate is supplied as 12 8-well modules - Each module is designed to break apart for 8 tests.

Description

CST's PathScan® Phospho-Insulin Receptor β (Tyr1150/1151) Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that detects transfected phospho-insulin receptor (Tyr1150/1151) protein. An Insulin Receptor β Mouse mAb has been coated onto the microwells. After incubation with cell lysates, both phospho- and nonphospho-insulin receptor proteins are captured by the coated antibody. Following extensive washing, Phospho-IGF-I Receptor β (Tyr1135/1136)/Insulin Receptor β (Tyr1150/1151) Rabbit mAb is added to detect the captured phospho-insulin receptor (Tyr1150/1151) protein. Anti-rabbit IgG, HRP-linked Antibody is then used to recognize the bound detection antibody. HRP substrate, TMB, is added to develop color. The magnitude of optical density for this developed color is proportional to the quantity of phospho-insulin receptor β (Tyr1150/1151) protein.

*Antibodies in kit are custom formulations specific to kit.

Specificity/Sensitivity

CST's PathScan® Phospho-Insulin Receptor β (Tyr1150/1151) Sandwich ELISA Kit #7258 detects phospho-insulin receptor (Tyr1150/1151) protein. As shown in Figure 1, using Phospho-Insulin Receptor β (Tyr1150/1151) Sandwich ELISA Kit #7258, a significant induction of phospho-insulin receptor (Tyr1150/1151) is detected in CHO-IR/IRS-1 cells treated with insulin. The levels of total insulin receptor β (phospho and nonphospho) shown by Western analysis remain unchanged. Endogenous phospho-insulin receptor β (Tyr1150/1151) in either NIH/3T3 or HepG2 cells treated with insulin is also detected by Phospho-Insulin Receptor β (Tyr1150/1151) Sandwich ELISA Kit #7258. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.

Background

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).

  1. Adams, T.E. et al. (2000) Cell Mol Life Sci 57, 1050-93.
  2. Baserga, R. (2000) Oncogene 19, 5574-81.
  3. Scheidegger, K.J. et al. (2000) J Biol Chem 275, 38921-8.
  4. Hernández-Sánchez, C. et al. (1995) J Biol Chem 270, 29176-81.
  5. Lopaczynski, W. et al. (2000) Biochem Biophys Res Commun 279, 955-60.
  6. Baserga, R. (1999) Exp Cell Res 253, 1-6.
  7. White, M.F. et al. (1985) J Biol Chem 260, 9470-8.
  8. White, M.F. et al. (1988) J Biol Chem 263, 2969-80.

Background References

    Cross-Reactivity Key

    H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

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    PathScan is a registered trademark of Cell Signaling Technology, Inc.
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