Anti-IGF1 Receptor antibody (ab131476)
Key features and details
- Rabbit polyclonal to IGF1 Receptor
- Suitable for: WB, IHC-P, ICC/IF
- Reacts with: Human
- Isotype: IgG
Overview
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Product name
Anti-IGF1 Receptor antibody
See all IGF1 Receptor primary antibodies -
Description
Rabbit polyclonal to IGF1 Receptor -
Host species
Rabbit -
Tested applications
Suitable for: WB, IHC-P, ICC/IFmore details -
Species reactivity
Reacts with: Human
Predicted to work with: Mouse, Rat -
Immunogen
Synthetic peptide conjugated to KLH, corresponding to a region around amino acids 1159-1163 (
DIYET
) of Human IGF1 Receptor (NP_000866.1). -
Positive control
- WB: HEK-293 cell extract. ICC/IF: MCF cells. IHC-P: Human breast carcinoma tissue.
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General notes
The Life Science industry has been in the grips of a reproducibility crisis for a number of years. Abcam is leading the way in addressing this with our range of recombinant monoclonal antibodies and knockout edited cell lines for gold-standard validation. Please check that this product meets your needs before purchasing.
If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, along with publications, customer reviews and Q&As
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at -20°C. Stable for 12 months at -20°C. -
Storage buffer
pH: 7.40
Preservative: 0.02% Sodium azide
Constituents: 49% PBS, 50% Glycerol, 0.88% Sodium chloride
PBS without Mg2+ and Ca2+ -
Concentration information loading...
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Purity
Immunogen affinity purified -
Clonality
Polyclonal -
Isotype
IgG -
Research areas
Associated products
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Compatible Secondaries
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Isotype control
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Recombinant Protein
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab131476 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Application | Abreviews | Notes |
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WB |
1/500 - 1/100. Detects a band of approximately 200, 95 kDa (predicted molecular weight: 154 kDa).
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IHC-P |
1/50 - 1/100.
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ICC/IF | (1) |
1/100 - 1/200.
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Notes |
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WB
1/500 - 1/100. Detects a band of approximately 200, 95 kDa (predicted molecular weight: 154 kDa). |
IHC-P
1/50 - 1/100. |
ICC/IF
1/100 - 1/200. |
Target
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Function
Receptor tyrosine kinase which mediates actions of insulin-like growth factor 1 (IGF1). Binds IGF1 with high affinity and IGF2 and insulin (INS) with a lower affinity. The activated IGF1R is involved in cell growth and survival control. IGF1R is crucial for tumor transformation and survival of malignant cell. Ligand binding activates the receptor kinase, leading to receptor autophosphorylation, and tyrosines phosphorylation of multiple substrates, that function as signaling adapter proteins including, the insulin-receptor substrates (IRS1/2), Shc and 14-3-3 proteins. Phosphorylation of IRSs proteins lead to the activation of two main signaling pathways: the PI3K-AKT/PKB pathway and the Ras-MAPK pathway. The result of activating the MAPK pathway is increased cellular proliferation, whereas activating the PI3K pathway inhibits apoptosis and stimulates protein synthesis. Phosphorylated IRS1 can activate the 85 kDa regulatory subunit of PI3K (PIK3R1), leading to activation of several downstream substrates, including protein AKT/PKB. AKT phosphorylation, in turn, enhances protein synthesis through mTOR activation and triggers the antiapoptotic effects of IGFIR through phosphorylation and inactivation of BAD. In parallel to PI3K-driven signaling, recruitment of Grb2/SOS by phosphorylated IRS1 or Shc leads to recruitment of Ras and activation of the ras-MAPK pathway. In addition to these two main signaling pathways IGF1R signals also through the Janus kinase/signal transducer and activator of transcription pathway (JAK/STAT). Phosphorylation of JAK proteins can lead to phosphorylation/activation of signal transducers and activators of transcription (STAT) proteins. In particular activation of STAT3, may be essential for the transforming activity of IGF1R. The JAK/STAT pathway activates gene transcription and may be responsible for the transforming activity. JNK kinases can also be activated by the IGF1R. IGF1 exerts inhibiting activities on JNK activation via phosphorylation and inhibition of MAP3K5/ASK1, which is able to directly associate with the IGF1R.
When present in a hybrid receptor with INSR, binds IGF1. PubMed:12138094 shows that hybrid receptors composed of IGF1R and INSR isoform Long are activated with a high affinity by IGF1, with low affinity by IGF2 and not significantly activated by insulin, and that hybrid receptors composed of IGF1R and INSR isoform Short are activated by IGF1, IGF2 and insulin. In contrast, PubMed:16831875 shows that hybrid receptors composed of IGF1R and INSR isoform Long and hybrid receptors composed of IGF1R and INSR isoform Short have similar binding characteristics, both bind IGF1 and have a low affinity for insulin. -
Tissue specificity
Found as a hybrid receptor with INSR in muscle, heart, kidney, adipose tissue, skeletal muscle, hepatoma, fibroblasts, spleen and placenta (at protein level). Expressed in a variety of tissues. Overexpressed in tumors, including melanomas, cancers of the colon, pancreas prostate and kidney. -
Involvement in disease
Insulin-like growth factor 1 resistance -
Sequence similarities
Belongs to the protein kinase superfamily. Tyr protein kinase family. Insulin receptor subfamily.
Contains 4 fibronectin type-III domains.
Contains 1 protein kinase domain. -
Post-translational
modificationsAutophosphorylated on tyrosine residues in response to ligand binding. Autophosphorylation occurs in trans, i.e. one subunit of the dimeric receptor phosphorylates tyrosine residues on the other subunit. Autophosphorylation occurs in a sequential manner; Tyr-1165 is predominantly phosphorylated first, followed by phosphorylation of Tyr-1161 and Tyr-1166. While every single phosphorylation increases kinase activity, all three tyrosine residues in the kinase activation loop (Tyr-1165, Tyr-1161 and Tyr-1166) have to be phosphorylated for optimal activity. Can be autophosphorylated at additional tyrosine residues (in vitro). Autophosphorylated is followed by phosphorylation of juxtamembrane tyrosines and C-terminal serines. Phosphorylation of Tyr-980 is required for IRS1- and SHC1-binding. Phosphorylation of Ser-1278 by GSK-3beta restrains kinase activity and promotes cell surface expression, it requires a priming phosphorylation at Ser-1282. Dephosphorylated by PTPN1.
Polyubiquitinated at Lys-1168 and Lys-1171 through both 'Lys-48' and 'Lys-29' linkages, promoting receptor endocytosis and subsequent degradation by the proteasome. Ubiquitination is facilitated by pre-existing phosphorylation.
Sumoylated with SUMO1.
Controlled by regulated intramembrane proteolysis (RIP). Undergoes metalloprotease-dependent constitutive ectodomain shedding to produce a membrane-anchored 52 kDa C-Terminal fragment which is further processed by presenilin gamma-secretase to yield an intracellular 50 kDa fragment. -
Cellular localization
Cell membrane. - Information by UniProt
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Database links
- Entrez Gene: 3480 Human
- Entrez Gene: 16001 Mouse
- Entrez Gene: 25718 Rat
- Omim: 147370 Human
- SwissProt: P08069 Human
- SwissProt: Q60751 Mouse
- SwissProt: P24062 Rat
- Unigene: 643120 Human
see all -
Alternative names
- CD221 antibody
- CD221 antigen antibody
- IGF 1 receptor antibody
see all
Images
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All lanes : Anti-IGF1 Receptor antibody (ab131476) at 1/500 dilution
Lane 1 : 293 cell extract with blocking peptide
Lane 2 : 293 cell extract
Predicted band size: 154 kDa -
Immunofluorescent analysis of methanol-fixed MCF cells labelling IGF1 Receptor with ab131476 at 1/100 dilution.
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Immunohistochemical analysis of paraffin-embedded Human breast carcinoma tissue labelling IGF1 Receptor with ab131476 at 1/50 dilution (left) or ab131476 preincubated with blocking peptide (right).
Protocols
Datasheets and documents
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SDS download
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Datasheet download
References (17)
ab131476 has been referenced in 17 publications.
- Wu R et al. Knockdown of circular RNA tousled-like kinase 1 relieves ischemic stroke in middle cerebral artery occlusion mice and oxygen-glucose deprivation and reoxygenation-induced N2a cell damage. Bioengineered 13:3434-3449 (2022). PubMed: 35067172
- Wang Y et al. MiR-448 suppresses cell proliferation and glycolysis of hepatocellular carcinoma through inhibiting IGF-1R expression. J Gastrointest Oncol 13:355-367 (2022). PubMed: 35284123
- Kaymaz AY et al. Alterations in insulin-like growth factor system in spinal muscular atrophy. Muscle Nerve 66:631-638 (2022). PubMed: 36050898
- Takata S et al. LIF-IGF Axis Contributes to the Proliferation of Neural Progenitor Cells in Developing Rat Cerebrum. Int J Mol Sci 23:N/A (2022). PubMed: 36361987
- Liu D et al. Ginkgoic acid impedes gastric cancer cell proliferation, migration and EMT through inhibiting the SUMOylation of IGF-1R. Chem Biol Interact 337:109394 (2021). PubMed: 33508304