IRS4 (Phospho-Y111+Y112) Rabbit Polyclonal Antibody

MSDS

IRS4 (Phospho-Y111+Y112) Rabbit Polyclonal Antibody

Key features and details

Rabbit polyclonal antibody to IRS4 (Phospho-Y111+Y112)

Target: IRS4 (Phospho-Y111+Y112)
Source/Host: Rabbit
Reactivity: Human, Mouse
Clonality: Polyclonal
Applications: WB
Conjugation: Unconjugated
Storage: at-20°C

Brand:

CAT.NO. : APA11861

US$ Please choose

Size:

50μL 100μL

Trail, Bulk size or Custom requests Please contact us

Product Details

Background

Acts as an interface between multiple growth factor receptors possessing tyrosine kinase activity, such as insulin receptor, IGF1R and FGFR1, and a complex network of intracellular signaling molecules containing SH2 domains. Involved in the IGF1R mitogenic signaling pathway. Promotes the AKT1 signaling pathway and BAD phosphorylation during insulin stimulation without activation of RPS6KB1 or the inhibition of apoptosis. Interaction with GRB2 enhances insulin-stimulated mitogen-activated protein kinase activity. May be involved in nonreceptor tyrosine kinase signaling in myoblasts. Plays a pivotal role in the proliferation/differentiation of hepatoblastoma cell through EPHB2 activation upon IGF1 stimulation.

Application

To ensure optimal assay performance, AREX recommends conducting reagent titration tailored to each testing system for optimal detection results.

WB	1:500 - 1:1000

*Results are sample-specific. Please refer to your local assay conditions and test parameters for reference.

Overview

Description	Rabbit polyclonal antibody to IRS4 (Phospho-Y111+Y112)
Specificity	Recognizes endogenous levels of IRS4 protein only when phosphorylated at Y111 and Y112
Antibody Type	Primary antibody
Imnunogen	KLH-conjugated synthetic phosphopeptide corresponding to residues surrounding Y111 and Y112 of human IRS4. The exact sequence is proprietary.
Purification	The antibody was purified by immunogen affinity chromatography.
Molecular Weight	Predicted: 133 kD; Observed: 160 kD
Form/Buffer	Liquid in 0.42% Potassium phosphate, 0.87% Sodium chloride, pH 7.3, 30% glycerol, and 0.01% sodium azide.
Alternative Names	Insulin receptor substrate 4; IRS-4; 160 kDa phosphotyrosine protein; py160; Phosphoprotein of 160 kDa; pp160
Gene Symbol	IRS4
Entrez Gene	8471(Human)
SwissProt	O14654(Human)

*AREX continuously optimizes our products. Webpage content may not reflect the latest updates. For inquiries, please contact info@arexbio.com or your local distributor.
*Clone Number, Reactivity, Source/Host and Clonality can be found in the product name and Key Features section above.

Data

Western blot analysis of IRS4 (Phospho-Y111+Y112) expression in A549 (A), PC3 (B), HepG2 (C), mouse brain (D) whole cell lysates. (Predicted band size: 133 kD; Observed band size: 160 kD)

Storage

Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.

Note

For Research Use Only. Not for use in diagnostic procedures.

FAQs

What are the main types of research antibodies and how do they differ?

Research antibodies are mainly divided into monoclonal antibodies and polyclonal antibodies. Monoclonal antibodies typically offer higher specificity and better batch-to-batch consistency, while polyclonal antibodies often provide stronger affinity but may show more variation between batches. The choice depends on your specific experimental needs.

How can I tell if a research antibody is suitable for my experiment?

It is recommended to carefully review the product datasheet for validated applications, species reactivity, recommended dilutions, and published references. For new antibodies, performing a small-scale validation with positive control samples is usually helpful.

Can improper storage of research antibodies affect experimental results?

Yes. Antibodies are sensitive to temperature, repeated freeze-thaw cycles, and contamination. Improper storage may lead to reduced activity, increased background, or weaker signals. It is best to follow the storage instructions provided in the product datasheet.

Why doesn’t the recommended dilution in the datasheet work well in my experiment?

The recommended dilution is based on the supplier’s test conditions. Factors such as sample type, fixation method, and detection system in your lab can influence the optimal working concentration. Performing a dilution series optimization in your own system is often necessary.

What precautions should I take when using a newly purchased research antibody for the first time?

It is advisable to briefly centrifuge the antibody (especially concentrated or lyophilized ones), then perform a small-scale pilot experiment using the recommended conditions. Recording the batch number and usage date is also helpful for future tracking.

New Products

PE-labled Human IgG1 Mouse Monoclonal Antibody(ARA651)

PE-labled CD43 Mouse Monoclonal Antibody(ARA652)

Sphingosine 1-Phosphate ELISA Kit

Human NGAL ELISA Kit

Human KIM-1 ELISA Kit

HRP-conjugated Pig IgG (H&L) Rabbit Polyclonal Antibody