IRS1 pSer639 Rabbit Polyclonal Antibody

CAT#: AP20832PU-N

IRS1 pSer639 rabbit polyclonal antibody, Aff - Purified

Product Images

Immunohistochemistry (IHC) analyzes of p-IRS-1 antibody (Cat.-No.: AP20832PU-N) in paraffin-embedded human breast carcinoma tissue.

Specifications

Product Data

• Applications: IHC
• Recommended Dilution: Immunohistochemistry on paraffin sections: 1/50 - 1/200.
• Reactivities: Human, Mouse, Rat
• Host: Rabbit
• Clonality: Polyclonal
• Specificity: This antibody detects endogenous levels of IRS-1 protein only when phosphorylated at Ser639.
• Formulation: Phosphate buffered saline (PBS), pH 7.2.
  State: Aff - Purified
  State: Liquid purified Ig fraction
  Preservative: 0.05% sodium azide
• Concentration: 1.0 mg/ml
• Purification: Affinity chromatography (> 95% (by SDS-PAGE)
• Storage: Store undiluted at 2-8°C for one month or (in aliquots) at -20°C for longer.
  Avoid repeated freezing and thawing.
• Stability: Shelf life: one year from despatch.
• Predicted Protein Size: ~132, 180 kDa
• Gene Name: Homo sapiens insulin receptor substrate 1 (IRS1)
• Database Link:
  Entrez Gene 16367 MouseEntrez Gene 25467 RatEntrez Gene 3667 Human
• Background: Insulin receptor substrate-1 (IRS-1) is a 170-185 kDa substrate of the insulin receptor that undergoes phosphorylation in response to insulin, IGF-1 and IL-4. Tyrosine (Tyr) phosphorylation of IRS-1 mediates insulin-stimulated responses, while Serine (Ser)/Threonine (Thr) phosphorylation of IRS-1 can either enhance or negate insulin effects. Tyrosines 465, 612, 632, 662, 941 and 989 of IRS-1 resemble YXXM motifs that upon phosphorylation are predicted to bind SH2 domains in the p85 regulatory subunit of PI3K, resulting in activation of p110 catalytic subunit. SHP-2 binding to IRS-1 can occur upon phosphorylation at Tyr 1179 and Tyr 1229. GRB2 binding can occur upon phsophorylation at Tyr 896. Rodent Ser 99 and Thr 502 of IRS-1 are casein kinase II-dependent phosphorylation sites. There is an increase in Ser 636 phosphorylation of IRS-1 in primary skeletal muscle cells from patients with type 2 diabetes.
• Synonyms: Insulin receptor substrate 1, IRS-1

Reference Data

• Protein Families: Druggable Genome
• Protein Pathways: Adipocytokine signaling pathway, Insulin signaling pathway, Neurotrophin signaling pathway, Type II diabetes mellitus