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  • ABE332 - Anti-phospho-IGF-1R (Tyr1161/Tyr1165/Tyr1166) Antibody

ABE332 Sigma-Aldrich

Anti-phospho-IGF-1R (Tyr1161/Tyr1165/Tyr1166) Antibody

from rabbit, purified by affinity chromatography

Synonym: Insulin-like growth factor 1 receptor, Insulin-like growth factor I receptor, IGF-I receptor, CD221, Insulin-like growth factor 1 receptor alpha chain, Insulin-like growth factor 1 receptor beta chain

  •  eCl@ss 32160702

  •  NACRES NA.41



Related Categories Alphabetical Index, Antibodies, I-IG, Primary Antibodies
clone   polyclonal
biological source   rabbit
application(s)   cell analysis: suitable (cell function assay)
  western blot: suitable
species reactivity   human, pig, mouse, rat, chicken, Xenopus, human
species reactivity (predicted by homology)   rat (based on 100% sequence homology), mouse (based on 100% sequence homology), zebrafish (based on 100% sequence homology), Xenopus (based on 100% sequence homology), porcine (based on 100% sequence homology), chicken (based on 100% sequence homology)
shipped in   wet ice
Quality Level   100
antibody product type   primary antibodies
purified by   affinity chromatography
NCBI accession no.   NP_000866
UniProt accession no.   P08069
Gene Information   human ... IGF1R(3480)


General description

There are two kinds of IGF receptors based on their relative affinities for IGF-1 versus IGF-2. The IGF-1 receptor (IGF-1R) prefers IGF-1 over IGF-2 and weakly binds insulin. IGF-1 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 IGF-1 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 IGF-1 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 mediating signaling pathways that enhance cell survival.


This antibody recognizes IGF-1R phosphorylated at Tyr1161/Tyr1165/Tyr1166. Please note that some sources list the phsophorylation sites as Tyr1131/Tyr1135/Tyr1136. The difference in the amino acid sequence is due to a 30 amino acid signal chain that is removed due to protein processing.


Epitope: Phosphorylated Tyr1161/Tyr1165/Tyr1166.

KLH-conjugated linear peptide corresponding to human IGF-1R phosphorylated at Tyr1161/Tyr1165/Tyr1166.


Anti-phospho-IGF-1R (Tyr1161/Tyr1165/Tyr1166) Antibody is an antibody against phospho-IGF-1R (Tyr1161/Tyr1165/Tyr1166) for use in WB, Cell Function Assay.

Research Category
Epigenetics & Nuclear Function


Research Sub Category
Insulin/Energy Signaling

Insulin/Energy Signaling

Western Blot Peptide Inhibition Analysis: A representative lot detected IGF-1R in IGF1 treated HEK293 cell lysate.

Target description

~95 kDa observed. IGF-1R can be cleaved into an Insulin-like growth factor 1 receptor alpha (aa 31-736) and beta (aa 741-1367) chain. Both chains are known to contain multiple potential glycosylation sites. Distinct beta-subunits are present in hybrid insulin-like-growth-factor-1 receptors in the central nervous system. (Moss, A.M., et al. (1993). Biochem J. 294( Pt 3):685-692.)

Physical form

Affinity Purfied

Purified rabbit polyclonal in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.


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.


Evaluated by Western Blot in IGF1treated HEK293 cell lysate.

Western Blot Analysis: A 1:200 dilution of this antibody detected IGF-1R in IGF1 treated HEK293 cell lysate.

Analysis Note

IGF1 untreated and treated HEK293 cell lysate

Safety & Documentation

Safety Information

WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


Antibody Basics

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Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detection methods, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

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