Anti-Rat IL-4 – Biotin

Anti-Rat IL-4 – Biotin

Product No.: I-253

[product_table name="All Top" skus="I-253"]

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Target
IL-4
Product Type
Polyclonal Antibody
Alternate Names
Interleukin-4, BCGF, BCDF, B Cell Stimulating Factor, BSF-1
Applications
ELISA Det
,
WB

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Product Size
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Antibody Details

Product Details

Reactive Species
Rat
Host Species
Goat
Immunogen
Purified Recombinant Rat IL-4 (Accession # P20096)
Formulation
This biotinylated antigen affinity purified polyclonal antibody has been 0.2 µm filtered and lyophilized from modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 containing 50 µg of bovine serum albumin per µg of antibody with no calcium, magnesium, or preservatives present.
State of Matter
Lyophilized
Storage and Handling
The lyophilized, biotinylated antigen affinity purified polyclonal antibody can be stored desiccated at -20°C to -70°C for up to twelve months from date of receipt. The reconstituted biotin conjugate can be stored for at least four weeks at 2-8°C. For long-term storage of the reconstituted conjugate, aseptically aliquot into working volumes and store at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. No detectable loss of activity was observed after six months.
Country of Origin
USA
Shipping
Next Day Ambient
Applications and Recommended Usage?
Quality Tested by Leinco
Western Blotting: To detect Rat IL-4 this biotin conjugate can be used at a concentration of 0.1 - 0.2 µg/ml. This biotin conjugate should be used in conjunction with compatible second-step reagents such as PN:A106 and a chromogenic substrate such as PN:T343. The detection limit for Rat IL-4 is 2 ng/lane under either reducing or non-reducing conditions. The sensitivity of detection may increase up to 50 fold when a chemiluminescent substrate is used. A suitable Western blotting control is PN:I-221.
ELISA Sandwich Assay: This antibody can be used as the detection antibody in a sandwich ELISA at a concentration of approximately 0.1-0.4 µg/mL when used in conjunction with PN:I-673 as the capture antibody at 2-8 µg/ml and an optimal second step reagent such as PN:A106 for the detection of Rat IL-4.
Each investigator should determine their own optimal working dilution for specific applications. See directions on lot specific datasheets, as information may periodically change.

Description

Specificity
Goat Anti-Rat Interleukin-4 (IL-4) recognizes Rat IL-4. This antigen affinity purified polyclonal antibody was purified using a proprietary chromatographic technique that includes covalently immobilizing the antigen proteins or peptides to agarose based beads. This purification method enhances specificity, reduces nonspecific binding of extraneous IgG and provides you with the most reliable reagent available for your early discovery research.
Background
IL-4 is a 15-19 kD pleiotropic immune cytokine secreted by activated TH2 cells. It has many biological roles, including the regulation in humoral and adaptive immunity, the inhibition of bone resorption, the stimulation of activated B-cell and T-cell proliferation, and initiation of allergic responses. Moreover, IL-4 induces a positive feedback loop by stimulating differentiation of naive helper T cells, or Th0 cells, to Th2 cells which in turn secrete more IL-4. Increased IL-4 production and overproduction of IL-4R are found in many cancers. IL-4 has a significant effect on tumor progression by increasing apoptosis resistance via tumor growth enhancement. IL-4 may also play a part in the immune dysregulation that occurs in most HIV-1 infected patients.

Antigen Details

PubMed
NCBI Gene Bank ID
Research Area
Other Molecules

References & Citations

1. Pike, JW. et al. (2001) PNAS 98: 2443
2. Finkelman, FD. et al. (2003) J Immunol. 170: 3835
3. Kaplan, MH. et al. (2008) J Immunol. 180: 3551
ELISA Det
General Western Blot Protocol
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Products are for research use only. Not for use in diagnostic or therapeutic procedures.