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Product Name
IGF1R-Specific antibody
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Description
IGF1R-Specific Rabbit Polyclonal antibody. Positive IHC detected in human lung cancer tissue. Positive WB detected in HeLa cells, L02 cells, MCF7 cells. Positive IP detected in HeLa cells. Observed molecular weight by Western-blot: 100 kDa
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Tested applications
ELISA, WB, IP, IHC
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Species reactivity
Human,Mouse,Rat; other species not tested.
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Alternative names
CD221 antibody; IGF I receptor antibody; IGF1R antibody; IGFIR antibody; IGFR antibody; JTK13 antibody
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Isotype
Rabbit IgG
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Preparation
This antibody was obtained by immunization of Peptide (Accession Number: NM_000875). Purification method: Antigen affinity purified.
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Clonality
Polyclonal
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Formulation
PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
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Storage instructions
Store at -20℃. DO NOT ALIQUOT
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Applications
Recommended Dilution:
WB: 1:500-1:5000
IP: 1:200-1:1000
IHC: 1:50-1:500
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Validations
HeLa cells were subjected to SDS PAGE followed by western blot with Catalog No:111678(IGF1R-Specific antibody) at dilution of 1:400
IP Result of anti-IGF1R-Specific (IP:Catalog No:111678, 4ug; Detection:Catalog No:111678 1:300) with HeLa cells lysate 2400ug.
Immunohistochemistry of paraffin-embedded human lung cancer tissue slide using Catalog No:111678(IGF1R-Specific Antibody) at dilution of 1:200 (under 10x lens).
Immunohistochemistry of paraffin-embedded human lung cancer tissue slide using Catalog No:111678(IGF1R-Specific Antibody) at dilution of 1:200 (under 40x lens).
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Background
IGF1R, also named as CD221, belongs to the protein kinase superfamily, Tyr protein kinase family and Insulin receptor subfamily. IGF1R binds insulin-like growth factor 1 (IGF1) with a high affinity and IGF2 with a lower affinity. It has a tyrosine-protein kinase activity, which is necessary for the activation of the IGF1-stimulated downstream signaling cascade. When present in a hybrid receptor with INSR, IGF1R binds IGF1. The 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, the 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. Defects in IGF1R may be a cause in some cases of resistance to insulin-like growth factor 1 (IGF1 resistance). This antibody raised against a synthesized polypeptide (CGVLVLRASFDERQPYAH) corresponding to 1332-1348aa of human IGF1R protein recognizes beta chain of IGF1R.
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References
- Tolba MF, Esmat A, Al-Abd AM. Caffeic acid phenethyl ester synergistically enhances docetaxel and paclitaxel cytotoxicity in prostate cancer cells. IUBMB life. 65(8):716-29. 2013.
- Lai G, Zhang Y, Wang L. Differences in IGF axis-related proteins in amniotic fluid of trisomy 21 and trisomy 18 using a multiple reaction monitoring approach. Prenatal diagnosis. 34(12):1146-52. 2014.
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