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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H | WB | Rb | Purified | Polyclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | 09-433 |
| Brand Family | Upstate |
| Trade Name |
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| Description | Anti-phospho-IRS1 (Tyr628) mouse/ (Tyr632) human Antibody |
| Alternate Names |
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| Background Information | Insulin receptor substrate (IRS) molecules are key mediators in insulin signaling and play a central role in maintaining basic cellular functions such as growth, survival, and metabolism. They act as docking proteins between the insulin receptor and a complex network of intracellular signaling molecules containing Src homology 2 (SH2) domains. Four members (IRS-1, IRS-2, IRS-3, IRS-4) of this family have been identified that differ as to tissue distribution, subcellular localization, developmental expression, binding to the insulin receptor, and interaction with SH2 domain-containing proteins. Results from targeted disruption of the IRS genes in mice have provided important clues to the functional differences among these related molecules, suggesting they play different and specific roles in vivo. The available data are consistent with the notion that IRS-1 and IRS-2 are not functionally interchangeable in tissues that are responsible for glucose production (liver), glucose uptake (skeletal muscle and adipose tissue), and insulin production (pancreatic β cells). In fact, IRS-1 appears to have its major role in skeletal muscle whereas IRS-2 appears to regulate hepatic insulin action as well as pancreatic β cell development and survival. By contrast, IRS-3 and IRS-4 genes appear to play a redundant role in the IRS signaling system. Defects in muscle IRS-1 expression and function have been reported in insulin-resistant states such as obesity and type 2 diabetes. |
| Product Information | |
|---|---|
| Format | Purified |
| Presentation | Affinity purified rabbit polyclonal IgG in storage buffer containing PBS with 0.05% sodium azide in 50% glycerol. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | Anti-phospho-IRS1 (Tyr628) mouse/ (Tyr632) human Antibody is an antibody against phospho-IRS1 (Tyr628) mouse/ (Tyr632) human for use in WB. |
| Key Applications |
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| Biological Information | |
|---|---|
| Immunogen | peptide corresponding to amino acids encompassing and including phosphorylated Tyr628 in mouse and Tyr632 in human of IRS1 |
| Concentration | Please refer to the Certificate of Analysis for the lot-specific concentration. |
| Host | Rabbit |
| Specificity | Recognizes phospho-IRS1 (Tyr628) mouse/ (Tyr632) human |
| Isotype | IgG |
| Species Reactivity |
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| Species Reactivity Note | Tested on human. Predicted to cross react with mouse and rat based on 100% sequence homology. |
| Antibody Type | Polyclonal Antibody |
| Entrez Gene Number |
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| Gene Symbol |
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| Modifications |
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| Purification Method | Affinity Purfied |
| UniProt Number |
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| UniProt Summary | FUNCTION: SwissProt: P35568 # May mediate the control of various cellular processes by insulin. When phosphorylated by the insulin receptor binds specifically to various cellular proteins containing SH2 domains such as phosphatidylinositol 3-kinase p85 subunit or GRB2. Activates phosphatidylinositol 3-kinase when bound to the regulatory p85 subunit (By similarity). SIZE: 1242 amino acids; 131591 Da SUBUNIT: Interacts with the NPXY motif of tyrosine-phosphorylated IGF1R and INSR via the PTB domain. Binds to phosphatidylinositol 3-kinase p85 subunit via the phosphorylated YXXM motifs. Binds ROCK1. Binds to UBTF and PIK3CA in nuclear extracts (By similarity). Interacts with SOCS7. PTM: Serine phosphorylation of IRS1 is a mechanism for insulin resistance. Ser-312 phosphorylation inhibits insulin action through disruption of IRS1 interaction with the insulin receptor (By similarity). & Phosphorylation of Tyr-896 is required for GRB2-binding (By similarity).DISEASE:SwissProt: P35568 # Polymorphisms in IRS1 may be involved in the etiology of non-insulin-dependent diabetes mellitus (NIDDM) [MIM:125853]. SIMILARITY: SwissProt: P35568 ## Contains 1 IRS-type PTB domain. & Contains 1 pH domain. |
| Molecular Weight | 170 kDa |
| Product Usage Statements | |
|---|---|
| Quality Assurance | routinely evaluated by western blot on lysates from untreated and insulin-treated (30 minutes) HEK 293 cells |
| Usage Statement |
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| Storage and Shipping Information | |
|---|---|
| Storage Conditions | Maintain for 2 years at -20°C from date of shipment. Aliquot to avoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. |
| Packaging Information | |
|---|---|
| Material Size | 100 µL |