Anti-Human ST2/IL-1 R4

Product No.: S583


Target ST2 Product Type Polyclonal Antibody Alternate Names IL-1 R4, T1 Applications CyTOF® , FC , IHC , N , WB


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Antibody Details

Product Details

Reactive Species

Human

Host Species

Goat

Immunogen

Sf 21 - Derived Recombinant Human ST2

Endotoxin Level

<0.1 EU/µg as determined by the LAL method

Formulation

This 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 5.0% w/v trehalose with no calcium, magnesium, or preservatives present.

State of Matter

Lyophilized

Storage and Handling

The lyophilized antigen affinity purified polyclonal antibody can be stored desiccated at -20°C to -70°C for twelve months from date of receipt. The reconstituted antibody can be stored for at least four weeks at 2-8°C. For long-term storage of the reconstituted antibody, 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

RRIDAB_2831792

Applications and Recommended Usage?
Quality Tested by Leinco

Western Blotting: To detect Human ST2 this polyclonal antibody can be used at a concentration of 0.1 - 0.2 µg/ml. This polyclonal antibody should be used in conjunction with compatible second-step reagents such as PN:G505 and a chromogenic substrate such as PN:T343. The detection limit for Human ST2 is 5 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.
Simple Western: Suitable for use at concentration of 2 µg/mL.
Flow Cytometry: Suitable for use at concentration of 0.25 µg/10⁶ cells

Additional Applications Reported In Literature ?

Immunohistochemistry: Suitable for use at concentration of 1-15 µg/mL.
Neutralization: Measured by its ability to neutralize IL‑33-induced IFN-gamma secretion in Human Peripheral Blood Mononuclear cells (PBMC). Blom, L and Poulsen, LK (2012) JI 189:4331. The Neutralization Dose (ND50) is typically 0.1-0.6 μg/mL in the presence of 1 ng/mL Recombinant Human IL‑33.
CyTOF-ready: Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

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-Human ST2 recognizes Human ST2. 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

ST2 belongs to the immunoglobulin superfamily and bears significant amino acid identity (~25%) to the extracellular portion of both type I and type II interleukin 1 receptors (IL-1R). Some of the intracellular residues that are required for signal transduction through the IL-1R and are conserved in the Drosophila Toll protein are also found in the membrane form of ST2. Furthermore, the gene for ST2 was mapped to mouse chromosome 1 closely linked to the il-1r locus containing both type I and type II receptor genes in support of their common ancestry.