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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| Ca, H, M | ELISA, WB | M | Purified | Monoclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | 04-300 |
| Brand Family | Upstate |
| Trade Name |
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| Description | Anti-phospho-Insulin Receptor (Tyr 1322) Antibody, clone 21G12 |
| Alternate Names |
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| Product Information | |
|---|---|
| Format | Purified |
| Control |
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| Presentation | Lyophilized in 2X PBS containing 0.09% sodium azide, PEG, and sucrose. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | Anti-phospho-Insulin Receptor Antibody, clone 21G12 is an antibody against phospho-Insulin Receptor (Tyr 1322) for use in ELISA & WB. |
| Key Applications |
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| Biological Information | |
|---|---|
| Immunogen | KLH-conjugated synthetic peptide encompassing the surrounding amino acids of Tyrosine 1322 on phosphorylated insulin receptor |
| Clone | 21g12 |
| Host | Mouse |
| Specificity | Recognizes phosphorylated domain of Insulin receptor on Tyrosine 1322. |
| Isotype | IgG1 |
| Species Reactivity |
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| Antibody Type | Monoclonal Antibody |
| Entrez Gene Number |
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| Entrez Gene Summary | After removal of the precursor signal peptide, the insulin receptor precursor is post-translationally cleaved into two chains (alpha and beta) that are covalently linked. Binding of insulin to the insulin receptor (INSR) stimulates glucose uptake. Two transcript variants encoding different isoforms have been found for this gene. |
| Gene Symbol |
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| Modifications |
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| Purification Method | Subsequent thiophilic adsorption and size exclusion chromatography |
| UniProt Number |
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| UniProt Summary | FUNCTION: SwissProt: P06213 # This receptor binds insulin and has a tyrosine-protein kinase activity. Isoform Short has a higher affinity for insulin. Mediates the metabolic functions of insulin. Binding to insulin stimulates association of the receptor with downstream mediators including IRS1 and phosphatidylinositol 3-kinase (PI3K). Can activate PI3K either directly by binding to the p85 regulatory subunit, or indirectly via IRS1. SIZE: 1382 amino acids; 156307 Da SUBUNIT: 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 chains carry the kinase domain. Interacts with SORBS1 but dissociates from it following insulin stimulation. Binds SH2B2. Interacts with the PTB/PID domains of IRS1 and SHC1 in vitro when autophosphorylated on tyrosine residues. The sequences surrounding the phosphorylated NPXY motif contribute differentially to either IRS1 or SHC1 recognition. Interacts with the SH2 domains of the 85 kDa regulatory subunit of PI3K (PIK3R1) in vitro, when autophosphorylated on tyrosine residues. Interacts with SOCS7. SUBCELLULAR LOCATION: Membrane; Single-pass type I membrane protein. TISSUE SPECIFICITY: Isoform Long and isoform Short are expressed in the peripheral nerve, kidney, liver, striated muscle, fibroblasts and skin. Isoform Short is expressed also in the spleen and lymphoblasts. PTM: After being transported from the endoplasmic reticulum to the Golgi apparatus, the single glycosylated precursor is further glycosylated and then cleaved, followed by its transport to the plasma membrane. & Autophosphorylated on tyrosine residues in response to insulin. & Phosphorylation of Tyr-999 is required for IRS1- and SHC1- binding. DISEASE: SwissProt: P06213 # Defects in INSR are the cause of insulin resistance (Ins resistance) [MIM:125853]. & Defects in INSR are the cause of Rabson-Mendenhall syndrome [MIM:262190]; also known as Mendenhall syndrome. It is a severe insulin resistance syndrome characterized by insulin- resistant diabetes mellitus with pineal hyperplasia and somatic abnormalities. Typical features include coarse, senile-appearing facies, dental and skin abnormalities, abdominal distension, and phallic enlargement. Inheritance is autosomal recessive. & Defects in INSR are the cause of leprechaunism [MIM:246200]; also known as Donohue syndrome. Leprechaunism represents the most severe form of insulin resistance syndrome, characterized by intrauterine and postnatal growth retardation and death in early infancy. Inheritance is autosomal recessive. & Defects in INSR may be associated with noninsulin- dependent diabetes mellitus (NIDDM) [MIM:125853]; also known as diabetes mellitus type 2. & Defects in INSR are the cause of familial hyperinsulinemic hypoglycemia 5 (HHF5) [MIM:609968]. Familial hyperinsulinemic hypoglycemia [MIM:256450], also referred to as congenital hyperinsulinism, nesidioblastosis, or persistent hyperinsulinemic hypoglycemia of infancy (PPHI), is the most common cause of persistent hypoglycemia in infancy and is due to defective negative feedback regulation of insulin secretion by low glucose levels. & Defects in INSR are the cause of insulin-resistant diabetes mellitus with acanthosis nigricans type A (IRAN type A) [MIM:610549]. This syndrome is characterized by the association of severe insulin resistance (manifested by marked hyperinsulinemia and a failure to respond to exogenous insulin) with the skin lesion acanthosis nigricans and ovarian hyperandrogenism in adolescent female subjects. Women frequently present with hirsutism, acne, amenorrhea or oligomenorrhea, and virilization. This syndrome is different from the type B that has been demonstrated to be secondary to the presence of circulating autoantibodies against the insulin receptor. SIMILARITY: SwissProt: P06213 ## Belongs to the protein kinase superfamily. Tyr protein kinase family. Insulin receptor subfamily. & Contains 2 fibronectin type-III domains. & Contains 1 protein kinase domain. |
| Molecular Weight | 97 kDa |
| Product Usage Statements | |
|---|---|
| Quality Assurance | Routinely evaluated by immunoblot. |
| Usage Statement |
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| Storage and Shipping Information | |
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| Storage Conditions | 2 years at -20°C from date of shipment. Reconstitute prior to use. Reconstitute with 1 mL H2O for 15 min at room temperature. Reconstituted aliquots should be stored frozen at -80°C. Thawed aliquots may be stored at 4°C for up to 3 months. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance. |
| Packaging Information | |
|---|---|
| Material Size | 100 µg |