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05-656

Sigma-Aldrich

Anti-IGF-IR Antibody, clone JBW902

clone JBW902, Upstate®, from mouse

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified immunoglobulin

clone

JBW902, monoclonal

species reactivity

mouse, human

manufacturer/tradename

Upstate®

technique(s)

immunohistochemistry: suitable
immunoprecipitation (IP): suitable
western blot: suitable

isotype

IgG2a

NCBI accession no.

UniProt accession no.

shipped in

dry ice

target post-translational modification

unmodified

Gene Information

human ... IGF1R(3480)

General description

There are two kinds of IGF receptors based on their relative affinities for IGF1 versus IGF2. The IGF1 receptor prefers IGF1 over IGF2 and weakly binds insulin. IGF1 receptor is a disulfide-linked heterotetrameric transmembrane protein consisting of two alpha (130 kDa) and two beta (95 kDa) subunits. Both the alpha and beta subunits are encoded within a single receptor precursor cDNA. The IGF1 receptor is therefore similar in structure to the insulin receptor. The proreceptor polypeptide is proteolytically cleaved and disulfide-linked to yield the mature heterotetrameric receptor. The IGF1 receptor is highly expressed in all cell types and tissues and is highly overexpressed in most malignant tissues where it functions as an anti-apoptotic agent by enhancing cell survival.

Specificity

Recognizes IGF-1 receptor b chain; does not cross react with insulin receptor.

Immunogen

GST fusion protein corresponding to residues 1264-1367 of human IGF-1 Receptor

Application

Anti-IGF-IR Antibody, clone JBW902 detects level of IGF-IR & has been published & validated for use in IH, IP & WB.
Research Category
Signaling
Research Sub Category
Insulin/Energy Signaling

Quality

routinely evaluated by immunoblot on RIPA lysates from C4 cells (mouse 3T3 cells that have been transfected with the human IGF-1 Receptor)

Target description

95 kDa

Physical form

Format: Purified
Protein A Purified immunoglobulin in Immunoaffinity Purified immunoglobulin in 0.14 M Tris-glycine, pH 7.4, 0.105 M NaCl, 0.035% sodium azide and 30% glycerol.
Protein A purified

Storage and Stability

Maintain for 2 years at -20°C from date of shipment. Aliquot to avoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Analysis Note

Control
C4 cell lysate, HepG2 cells

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Regulation of insulin-like growth factor I receptors in diabetic mesangial cells.
Oemar, B S, et al.
The Journal of Biological Chemistry, 266, 2369-2373 (1991)
Babette Haven et al.
eLife, 5 (2016-02-26)
The Reproducibility Project: Cancer Biology seeks to address growing concerns about reproducibility in scientific research by conducting replications of selected experiments from a substantial number of high-profile papers in the field of cancer biology. The papers, which were published between
Identification of retinal insulin receptors using site-specific antibodies to a carboxyl-terminal peptide of the human insulin receptor alpha-subunit. Up-regulation of neuronal insulin receptors in diabetes.
Rosenzweig, S A, et al.
The Journal of Biological Chemistry, 265, 18030-18034 (1990)
Jinhua Wu et al.
The EMBO journal, 27(14), 1985-1994 (2008-06-21)
The insulin-like growth factor-1 receptor (IGF1R) is a receptor tyrosine kinase (RTK) that has a critical role in mitogenic signalling during embryogenesis and an antiapoptotic role in the survival and progression of many human tumours. Here, we present the crystal
Barbara P Craddock et al.
Journal of signal transduction, 2012, 804801-804801 (2012-07-11)
The insulin-like growth factor I receptor (IGF1R) is overexpressed in several forms of human cancer, and it has emerged as an important target for anticancer drug design. Cancer genome sequencing efforts have recently identified three somatic mutations in IGF1R: A1374V

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