IRS1 [p Ser307] Antibody

Novus Biologicals, part of Bio-Techne | Catalog # NBP1-78078

Novus Biologicals, part of Bio-Techne
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NBP1-78078
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Key Product Details

Species Reactivity

Validated:

Human

Cited:

Human

Predicted:

Bovine (94%), Monkey (100%), Mouse (100%), Porcine (94%), Rat (100%). Backed by our 100% Guarantee.

Applications

ELISA, Immunohistochemistry, Immunohistochemistry-Paraffin, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Rabbit IgG

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

View all IRS1 Antibodies »

Product Specifications

Immunogen

This affinity purified IRS1 [p Ser307] Antibody was prepared from whole rabbit serum produced by repeated immunizations with a synthetic peptide corresponding to an internal region near amino acids 290-320 of human IRS1 protein. (Uniprot: P35568)

Reactivity Notes

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.

Modification

p Ser307

Specificity

This affinity-purified antibody is directed against the phosphorylated form of human IRS1 protein at the pS307 residue. The resultant affinity purified antibody was then cross-adsorbed against the non-phosphorylated form of the immunizing peptide. 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.

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG

Description

This affinity-purified antibody is directed against the phosphorylated form of human IRS1 protein at the [p Ser307] residue. The product was affinity purified from monospecific antiserum by immunoaffinity purification. Antiserum was first purified against the phosphorylated form of the immunizing peptide. The resultant affinity purified antibody was then cross-adsorbed against the non-phosphorylated form of the immunizing peptide

Store vial at -20C prior to opening. Aliquot contents and freeze at -20C 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 4C as an undiluted liquid. Dilute only prior to immediate use.

Scientific Data Images for IRS1 [p Ser307] Antibody

Western Blot: IRS1 [p Ser307] Antibody [NBP1-78078]

Western Blot: IRS1 [p Ser307] Antibody [NBP1-78078]

Western Blot: IRS1 [p Ser307] Antibody [NBP1-78078] - Band at ~180 kDa believed to represent phosphorylated IRS1 (arrowhead). Lane 1 shows staining of human 293 cell lysate. Lane 2 shows staining of 293 cell lysate. The pronounced staining of the band at 180 kDa is not seen when the antibody was pre-incubated with immunizing peptide prior to reaction. The identity of the intensely reactive bands at ~70 kD in both lane 1 and 2 is unknown, although these bands were also competed out by pre-incubation with the immunizing peptide. (800 nm channel, green). Molecular weight estimation was made by comparison to prestained MW markers in lane M (700 nm channel, red).
IRS1 [p Ser307] Antibody

IRS1 [p Ser307] Antibody

Western blot using Affinity Purified anti-IRS1 pS307 antibody shows detection of a band at ~180 kDa believed to represent phosphorylated IRS1 (arrowhead). Lane 1 shows staining of human 293 cell lysate

Applications for IRS1 [p Ser307] Antibody

Application
Recommended Usage

ELISA

1:2000-1:10000

Immunohistochemistry

1:10-1:500

Immunohistochemistry-Paraffin

1:10-1:500

Western Blot

1:250-1:1500
Application Notes
This affinity purified antibody has been tested for use in ELISA and western blot. Specific conditions for reactivity should be optimized by the end user. Expect a band approximately 130 kDa in size corresponding to phosphorylated IRS1 protein by western blotting in the appropriate cell lysate or extract. Minimal reactivity is observed against the non-phosphorylated form of the immunizing peptide. This antibody is phospho specific for pS307 of IRS1 protein.

Formulation, Preparation, and Storage

Purification

Immunogen affinity purified

Formulation

0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2

Preservative

0.01% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at -20C short term. Aliquot and store at -80C long term. Avoid freeze-thaw cycles.

Background: IRS1

Insulin receptor substrates (IRS), the major intracellular substrates of the insulin receptor (IR), are adaptor proteins that transduce signals from the IR to downstream effectors that are important for the biological effect of insulin (1-2). After insulin stimulation, IRS proteins are rapidly phosphorylated on multiple tyrosine residues. Once phosphorylated, IRS proteins bind and activate Grb-2, SHP2 and the PI3-K p85 subunit (2-3). IRS-1 functions as one of the key regulators of IR and the insulin-like growth factor-1 receptor. Disruption of IRS-1 causes growth retardation and insulin resistance associated with hypertension, hypertriglyceridemia, and impaired endothelium-dependent vascular relaxation (4-5)

Long Name

Insulin Receptor Substrate 1

Alternate Names

HIRS-1, insulin receptor substrate 1, IRS-1

Gene Symbol

IRS1

UniProt

P35568

Additional IRS1 Products

Product Documents for IRS1 [p Ser307] Antibody

Product Datasheets

Certificate of Analysis

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Product Specific Notices for IRS1 [p Ser307] Antibody

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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