Recombinant Rat Interleukin-1 Receptor Antagonist Protein

Cat No.

RP00109

Product Specifications

Product Type

Recombinant protein

Applications

Bioactivity, Endotoxin

Source

E. coli.

UniProt No.P25086
Purity

> 96 % by SDS-PAGE and HPLC analyses.

Bioactivity

Fully biologically active when compared to standard. The ED50 as determined by inhibiting IL-1α-dependent proliferation of Mouse D10S cells is less than 150 ng/ml, corresponding to a specific activity of > 6.7 × 103 IU/mg in the presence of 50 pg/ml rRtIL-1α.

Endotoxin

Less than 1 EU/μg of rRtIL-1RA as determined by LAL method.

Molecular Weight

Approximately 17.4 kDa, a single non-glycosylated polypeptide chain containing 152 amino acids.

Formulation

Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.4.

Alternative Names

IL-1RA, IL1RN, Rat

Storage

-20C

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.

Research Area

Immunology