Interleukin-18 (IL18, also known as interferon-gamma inducing factor or IGIF) is a cytokine that belongs to the IL-1 superfamily and is produced by macrophages and other cells.

產(chǎn)品型號(hào)：Z03025

更新時(shí)間：2025-11-06

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產(chǎn)品介紹

產(chǎn)品簡(jiǎn)介

Species

Rat

Protein Construction

Expressed with an N-terminal Met.

IL-18 (His37-Ser194)
Accession # P97636-1

Purity

> 95% as analyzed by SDS-PAGE

Endotoxin Level

< 0.2 EU/μg of protein by gel clotting method

Biological Activity

ED50 < 2.0 μg/ml resulted in the secretion of 0.15 ng/ml h-IFN-gamma when tested using KG-1 cell line, corresponding to a specific activity of > 500.0 U/mg.

Expression System

E. coli

Apparent Molecular Weight

~18.4 kDa, on SDS-PAGE under reducing conditions.

Formulation

Lyophilized after extensive dialysis against 50 mM Tris, 50 mM NaCl, pH 8.0.

Reconstitution

It is recommended that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute the lyophilized powder in ddH?O up to 100 μg/ml.

Storage & Stability

Upon receiving, this product remains stable for 6 months at lower than -70°C. Upon reconstitution, the product should be stable for 1 week at 4°C or for 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles.

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