Rabbit IGF1 Receptor Polyclonal Antibody | anti-IGF1 antibody

Phospho-IGF1 Receptor (Tyr1131/Tyr1146) Antibody

Cat. Num. AAA9613198

• Gene Names: IGF1R; IGFR; CD221; IGFIR; JTK13
• Reactivity: Human, Mouse, Rat, Pig; Predicted Reactivity: Bovine (100%), Rabbit (100%), Dog (100%), Chicken (100%), Xenopus (100%)
• Applications: Western Blot, ELISA
• Purity: The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
• Synonyms: IGF1 Receptor; Polyclonal Antibody; Phospho-IGF1 Receptor (Tyr1131/Tyr1146) Antibody; CD221; CD221 antigen; IGF 1 receptor; IGF 1R; IGF I receptor; IGF-I receptor; Igf1r; IGF1R_HUMAN; IGFIR; IGFIRC; IGFR; Insulin like growth factor 1 receptor; Insulin like growth factor 1 receptor precursor; Insulin-like growth factor 1 receptor beta chain; Insulin-like growth factor I receptor; JTK13; MGC142170; MGC142172; MGC18216; Soluble IGF1R variant 1; Soluble IGF1R variant 2; anti-IGF1 antibody

• Host: Rabbit
• Reactivity: Human, Mouse, Rat, Pig; Predicted Reactivity: Bovine (100%), Rabbit (100%), Dog (100%), Chicken (100%), Xenopus (100%)
• Clonality: Polyclonal
• Isotype: Rabbit IgG
• Specificity: Phospho-IGF1 Receptor (Tyr1131/Tyr1146) Antibody detects endogenous levels of IGF1 Receptor only when phosphorylated at Tyr1146.; 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.
• Purity/Purification: The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
• Form/Format: Liquid. Rabbit IgG in phosphate buffered saline, pH7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
• Concentration: 1mg/ml (varies by lot)

• Applicable Applications for anti-IGF1 antibody: Western Blot (WB), Peptide ELISA (EIA)
• Application Notes: WB: 1:500-1:2000; Peptide ELISA: 1:20,000-1:40,000
• Immunogen: A synthesized peptide derived from human IGF-I Receptor around the phosphorylation site of Tyr1131.
• Conjugation: Unconjugated
• Fragment: Fab fragment
• Post Translational Modifications: Autophosphorylated 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 (By similarity).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 52kDa C-Terminal fragment which is further processed by presenilin gamma-secretase to yield an intracellular 50kDa fragment.
• Subunit Structure: Tetramer of 2 alpha and 2 beta chains linked by disulfide bonds. The alpha chains contribute to the formation of the ligand-binding domain, while the beta chain carries the kinase domain. Interacts with PIK3R1 and with the PTB/PID domains of IRS1 and SHC1 in vitro when autophosphorylated on tyrosine residues. Forms a hybrid receptor with INSR, the hybrid is a tetramer consisting of 1 alpha chain and 1 beta chain of INSR and 1 alpha chain and 1 beta chain of IGF1R. Interacts with ARRB1 and ARRB2. Interacts with GRB10. Interacts with RACK1. Interacts with SOCS1, SOCS2 and SOCS3. Interacts with 14-3-3 proteins. Interacts with NMD2. Interacts with MAP3K5. Interacts with STAT3. Found in a ternary complex with IGF1 and ITGAV:ITGB3 or ITGA6:ITGB4. Interacts (nascent precursor form) with ZFAND2B.
• Similarity: Belongs to the protein kinase superfamily. Tyr protein kinase family. Insulin receptor subfamily.
• Subcellular Location: Cell membrane>Single-pass type I membrane protein.
• Preparation and Storage: Store at -20 degree C. Stable for 12 months from date of receipt.

Western Blot (WB)

(Western blot analysis of extracts from 293 Insulin, using Phospho-IGF-I Receptor (Tyr1131) /Insulin Receptor (Tyr1146)[Tyr1161] Antibody. Lane1 was treated with phospho-blocking peptide, Lane2 was treated with non-phospho-blocking peptide.)

Related Product Information for anti-IGF1 antibody

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 85kDa 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. 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,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.

NCBI and Uniprot Product Information

• NCBI GI #: 4557665
• NCBI GeneID: 3480
• NCBI Accession #: NP_000866.1
• NCBI GenBank Nucleotide #: NM_000875.3
• UniProt Accession #: P08069; Q14CV2; Q9UCC0; B1B5Y2
• Molecular Weight: 154,793 Da
• NCBI Official Full Name: insulin-like growth factor 1 receptor
• NCBI Official Synonym Full Names: insulin-like growth factor 1 receptor
• NCBI Official Symbol: IGF1R
• NCBI Official Synonym Symbols: IGFR; CD221; IGFIR; JTK13
• NCBI Protein Information: insulin-like growth factor 1 receptor; IGF-I receptor; soluble IGF1R variant 1; soluble IGF1R variant 2; insulin-like growth factor I receptor
• UniProt Protein Name: Insulin-like growth factor 1 receptor
• Protein Family: Insulin-like growth factor
• UniProt Gene Name: IGF1R
• UniProt Synonym Gene Names: IGF-I receptor
• UniProt Entry Name: IGF1R_HUMAN

NCBI Description

This receptor binds insulin-like growth factor with a high affinity. It has tyrosine kinase activity. The insulin-like growth factor I receptor plays a critical role in transformation events. Cleavage of the precursor generates alpha and beta subunits. It is highly overexpressed in most malignant tissues where it functions as an anti-apoptotic agent by enhancing cell survival. [provided by RefSeq, Jul 2008]

Uniprot Description

IGF1R: a receptor tyrosine kinase that binds insulin-like growth factor 1 (IGF1) with a high affinity and IGF2 with a lower affinity. Functions as an anti-apoptotic agent by enhancing cell survival. Can play a critical role in transformation events. Cleavage of the precursor generates alpha and beta subunits. Tetramer of 2 alpha and 2 beta chains linked by disulfide bonds. The alpha chains contribute to the formation of the ligand- binding domain, while the beta chain carries the kinase domain. Interacts with PIK3R1 and with the PTB/PID domains of IRS1 and SHC1 in vitro when autophosphorylated on tyrosine residues. Mutated in rare cases of pre- and post-natal growth retardation. One SNP associated with increased human longevity. Increased expression of IGF1R and other pathway members associated with progression and malignancy in a range of cancers. Inhibitors: AG1024, AEW541.

Protein type: Membrane protein, integral; Protein kinase, tyrosine (receptor); Kinase, protein; Protein kinase, TK; EC 2.7.10.1; TK group; InsR family

Chromosomal Location of Human Ortholog: 15q26.3

Cellular Component: neuron projection; intracellular membrane-bound organelle; membrane; integral to plasma membrane; plasma membrane; caveola; receptor complex

Molecular Function: insulin binding; identical protein binding; insulin-like growth factor binding; protein binding; insulin-like growth factor I binding; protein-tyrosine kinase activity; insulin receptor substrate binding; G-protein alpha-subunit binding; phosphoinositide 3-kinase binding; insulin-like growth factor receptor activity; insulin receptor binding; ATP binding

Biological Process: phosphoinositide 3-kinase cascade; epidermis development; inactivation of MAPKK activity; protein heterooligomerization; protein amino acid autophosphorylation; exocrine pancreas development; signal transduction; regulation of JNK cascade; response to vitamin E; mammary gland development; positive regulation of MAPKKK cascade; male sex determination; positive regulation of cell proliferation; protein tetramerization; positive regulation of cytokinesis; phosphoinositide-mediated signaling; negative regulation of protein kinase B signaling cascade; positive regulation of mitosis; negative regulation of transcription factor activity; positive regulation of protein kinase B signaling cascade; axonogenesis; insulin-like growth factor receptor signaling pathway; establishment of cell polarity; insulin receptor signaling pathway; immune response; brain development; positive regulation of DNA replication; positive regulation of cell migration; negative regulation of apoptosis

Disease: Insulin-like Growth Factor I, Resistance To