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IGF1R Polyclonal antibody

IGF1R Polyclonal Antibody for WB, IP, IHC, ELISA

Host / Isotype

Rabbit / IgG


human, mouse, rat and More (1)





Cat no : 20254-1-AP


CD221, IGF I receptor, IGF1R, IGF1R Beta Chain, IGFIR, IGFR, JTK13

Tested Applications

Positive WB detected inHeLa cells, L02 cells
Positive IP detected inHeLa cells
Positive IHC detected inhuman lung cancer tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0

Recommended dilution

Western Blot (WB)WB : 1:500-1:2000
Immunoprecipitation (IP)IP : 0.5-4.0 ug for 1.0-3.0 mg of total protein lysate
Immunohistochemistry (IHC)IHC : 1:100-1:400
It is recommended that this reagent should be titrated in each testing system to obtain optimal results.
Sample-dependent, Check data in validation data gallery.

Product Information

20254-1-AP targets IGF1R in WB, IP, IF, IHC, ELISA applications and shows reactivity with human, mouse, rat samples.

Tested Reactivity human, mouse, rat
Cited Reactivityhuman, mouse, rat, pig
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen Peptide
Full Name IGF I receptor
Calculated Molecular Weight 155 kDa
Observed Molecular Weight 100 kDa
GenBank Accession NumberNM_000875
Gene Symbol IGF1R
Gene ID (NCBI) 3480
Conjugate Unconjugated
Form Liquid
Purification MethodAntigen affinity purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. 20ul sizes contain 0.1% BSA.

Background Information

IGF1R, also named as CD221, is a receptor tyrosine kinase which mediates actions of INS-like growth factor 1 (IGF1). IGF1R binds IGF1 with high affinity and IGF2 and INS with a lower affinity, the activated IGF1R is involved in cell growth and survival control. It is crucial for tumor transformation and survival of malignant cells. IGF1R is a heterotetrameric receptor, composed of two alpha subunits (130 kDa each) and two beta subunits (~98 kDa each) (PMID: 6279656). Both the alpha and beta subunits are synthesized from a single mRNA precursor. The precursor is then glycosylated, proteolytically cleaved, and crosslinked by cysteine bonds.


Product Specific Protocols
WB protocol for IGF1R antibody 20254-1-APDownload protocol
IHC protocol for IGF1R antibody 20254-1-APDownload protocol
IP protocol for IGF1R antibody 20254-1-APDownload protocol
Standard Protocols
Click here to view our Standard Protocols




Regulator of Calcineurin 1 Gene Isoform 4, Downregulated in Hepatocellular Carcinoma, Prevents Proliferation, Migration, and Invasive Activity of Cancer Cells and Growth of Orthotopic Tumors by Inhibiting Nuclear Translocation of NFAT1.

Authors - Haojie Jin

Mol Cancer

CircVAPA promotes small cell lung cancer progression by modulating the miR-377-3p and miR-494-3p/IGF1R/AKT axis.

Authors - Jinghan Hua

J Cachexia Sarcopenia Muscle

Exogenous insulin-like growth factor 1 attenuates cisplatin-induced muscle atrophy in mice.

Authors - Hiroyasu Sakai

Clin Transl Med

Aptamer-SH2 superbinder-based targeted therapy for pancreatic ductal adenocarcinoma.

Authors - An-Dong Liu

Cancer Lett

Thevebioside, the active ingredient of traditional Chinese medicine, promotes ubiquitin-mediated SRC-3 degradation to induce NSCLC cells apoptosis.

Authors - Chao Yao


Circulating IGF-1 promotes prostate adenocarcinoma via FOXO3A/BIM signaling in a double-transgenic mouse model.

Authors - Shuang Wang


The reviews below have been submitted by verified Proteintech customers who received an incentive forproviding their feedback.


Tongbin (Verified Customer) (08-25-2020)

This antibody had some faint non-specific bands in addition to a strong and specific IGF1R band.

  • Applications: Western Blot
  • Cell Tissue Type: Heart