Phospho-IRS1 (Ser307)Rabbit anti-Human, Polyclonal, Rockland™

Catalog No.	Quantity
50-194-3847	100 μg

Catalog No. 50-194-3847 Supplier Rockland Immunochemicals Supplier No. 600401445

Description

Rabbit Polyclonal Antibody

Store vial at -20°C prior to opening. Aliquot contents and freeze at -20°C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4°C as an undiluted liquid. Dilute only prior to immediate use. This affinity-purified antibody is directed against the phosphorylated form of human IRS1 protein at the pS307 residue. Reactivity occurs against human IRS1 pS307 protein and the antibody is specific for the phosphorylated form of the protein. Reactivity with non-phosphorylated human IRS1 is minimal by ELISA. A BLAST analysis was used to suggest cross reactivity with IRS1 from human, mouse, rat, dog and vervet monkey based on 100% homology with the immunizing sequence. Partial reactivity is also expected against IRS1 from pig (94%), bovine (94%) and chicken (88%) sources. Reactivity of this antibody with IRS1 from other species is unknown.

IRS-1, a major substrate of the insulin receptor, is phosphorylated in response to stimulation of cells by insulin, insulin-like growth factor 1 (IGF-1) and interleukin 4 (IL-4). IRS-1 is phosphorylated on serine, threonine and tyrosine residues in a variety of tissues. An insulin-sensitive serine/threonine kinase casein kinase II mediates a portion of the insulin-stimulated serine/threonine phosphorylation of overexpressed IRS-1 in vivo. Thr 502 is identified as the major casein kinase II-catalyzed phosphorylation site in rat IRS-1, and Ser 99 is an additional phosphorylation site catalyzed by casein kinase II. Thus, casein kinase II-catalyzed phosphorylation of IRS-1 may be a component of the intracellular insulin signaling cascade. IRS-1 contains three putative binding sites for 14-3-3 (Ser 270, Ser 374 and Ser 641) and the motif around Ser 270 is located in the phosphortyrosine binding domain of IRS-1, which is responsible for the interaction with the insulin receptor.

Specifications

• Antigen: Phospho-IRS1 (Ser307)
• Applications: ELISA, Immunohistochemistry, Immunoprecipitation, Western Blot
• Classification: Polyclonal
• Concentration: 1 mg/mL
• Conjugate: Unconjugated
• Formulation: 0.02M potassium phosphate with 0.15M NaCl and 0.01% sodium azide; pH 7.2
• Gene: IRS1
• Gene Accession No.: P35568
• Gene Alias: G972R; HIRS-1; Insulin receptor substrate 1; IRS1; Irs-1; IRS1IRM; pp185
• Gene Symbols: IRS1
• Host Species: Rabbit
• Quantity: 100 μg
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 3667
• Target Species: Human
• Content And Storage: -20°C, Avoid Freeze/Thaw Cycles
• Product Type: Antibody
• Form: Liquid