1. Measured by its binding ability in a functional ELISA. 2. Immobilized human IL1B at 10 μg/mL (100 μl/well) can bind human IL1R1. The EC50 of human IL1R1 is 0.198 μg/mL.

IL-1 beta/IL-1F2 Protein, Human, Recombinant (His) is expressed in E. coli expression system with His tag. The predicted molecular weight is 32.3 kDa and the accession number is P01584.

Human

E. coli

IL-1,IL1-β,IL1-BETA,IL1F2,IL-1B,interleukin 1, beta,IL-1 β,interleukin 1, β,IL-1 beta

The pro form of Human IL1β (NP_000567.1, with mutation Glu 6 Lys) (Met 1-Ser 269) was fused with a polyhistidine tag at the N-terminus.

> 95 % as determined by SDS-PAGE

A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.

It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

Interleukin-1 beta (IL1 beta or IL1B) also known as catabolin, is a member of the interleukin 1 cytokine family. IL1 is a pleiotropic cytokine. It is involved in the inflammatory response, cell growth, and tissue repair in the cortex. The IL1 superfamily consists of three members, IL1A (IL1 alpha), IL1B (IL1 beta), and IL1 receptor antagonist (IL1Ra). In clinical, it has been reported that Interleukin (IL)-1 may influence Th1 / Th2 immune responsiveness and has been implicated in the establishment of a successful pregnancy. Proinflammatory interleukin (IL)-1 gene polymorphisms associated with high levels of IL-1beta activity increase the risk for hypochlorhydria and distal gastric carcinoma. IL1B polymorphisms may be involved in susceptibility to SSc. Moreover, the IL2-384-G allele may be a marker for the limited phenotype of systemic sclerosis (SSc).Cancer ImmunotherapyImmune CheckpointImmunotherapyTargeted Therapy