IL13RA1 Protein, Human, Recombinant (His Tag)

Product Specifications

Background

Interleukin 13 receptor, alpha 1, also known as IL13RA1/IL-13RA1 and CD213A1 (cluster of differentiation 213A1), is a subunit of the interleukin 13 receptor. This subunit forms a receptor complex with IL4 receptor alpha, a subunit shared by IL13 and IL4 receptors. IL13RA1/IL-13RA1 serves as a primary IL13-binding subunit of the IL13 receptor, and may also be a component of IL4 receptors. This protein has been shown to bind tyrosine kinase TYK2 and thus may mediate the signaling processes that lead to the activation of JAK1, STAT3, and STAT6 induced by IL13 and IL4. IL13RA1/IL-13RA1 binds with low affinity to interleukin-13 (IL13) . This subunit together with IL4RA can form a functional receptor for IL13. IL13RA1/IL-13RA1 also serves as an alternate accessory protein to the common cytokine receptor gamma chain for interleukin-4 (IL4) signaling, but cannot replace the function of IL2RG in allowing enhanced interleukin-2 (IL2) binding activity.

Overview

A DNA sequence encoding the human IL13Rα1 (NP_001551.1) extracellular domain (Met 1-Thr 343) expressed, with a C-terminal polyhistidine tag.

Synonyms

CD213A1 Protein, Human; IL-13Ra Protein, Human; NR4 Protein, Human

Gene Name

Interleukin 13 receptor, alpha 1

Expression System

HEK293 Cells

Tag

C-His

Endotoxin

< 1.0 EU per μg of the protein as determined by the LAL method.

Purity

> 97 % as determined by SDS-PAGE.

Activity

Measured by its binding ability in a functional ELISA. Immobilized human IL13RA1 at 4 μg/ml (100 μl/well) can bind human IL13 with a linear range of 0.156-2.5 μg/ml.

Form

Lyophilized

Buffer

Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.

Function

CD Molecule proteins, Receptor Proteins, Enzyme Proteins, Cytokine Proteins, Interleukin proteins

Molecular Weight

The recombinant human IL13Rα1 consists of 333 amino acids and has a predicted molecular mass of 38.3 kDa. As a result of glycosylation, the apparent molecular mass of rh IL13Rα1 is approximately 55-65 kDa in SDS-PAGE under reducing conditions.

Storage Conditions

In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.