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  6. IL-1 beta Protein, Human (solution)

IL-1 beta Protein, Human (solution)

Cat. No.: HY-P70586
COA Handling Instructions

IL-1 beta protein is a potent proinflammatory cytokine that plays multiple roles in immune responses. It induces inflammatory events including prostaglandin synthesis, neutrophil activation, and cytokine production. IL-1 beta Protein, Human (solution) is the recombinant human-derived IL-1 beta protein, expressed by E. coli , with tag free. The total length of IL-1 beta Protein, Human (solution) is 153 a.a., with molecular weight of ~16.61 kDa.

For research use only. We do not sell to patients.

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Description

IL-1 beta protein is a potent proinflammatory cytokine that plays multiple roles in immune responses. It induces inflammatory events including prostaglandin synthesis, neutrophil activation, and cytokine production. IL-1 beta Protein, Human (solution) is the recombinant human-derived IL-1 beta protein, expressed by E. coli , with tag free. The total length of IL-1 beta Protein, Human (solution) is 153 a.a., with molecular weight of ~16.61 kDa.

Background

IL-1 beta Protein stands as a potent pro-inflammatory cytokine, recognized for its diverse roles in orchestrating immune responses. Originally identified as a major endogenous pyrogen, IL-1 beta induces a cascade of inflammatory events, including prostaglandin synthesis, neutrophil influx and activation, T-cell and B-cell activation, cytokine production, as well as fibroblast proliferation and collagen production. It plays a pivotal role in immune cell differentiation, promoting Th17 differentiation of T-cells and synergizing with IL-12 to induce IFNG synthesis from T-helper 1 (Th1) cells. Additionally, IL-1 beta contributes to angiogenesis by inducing VEGF production, working synergistically with TNF and IL-6. Notably, it plays a key role in transducing inflammation downstream of pyroptosis, being specifically released into the extracellular milieu through the gasdermin-D (GSDMD) pore. In the context of microbial infection, IL-1 beta acts as a sensor of S. pyogenes infection in the skin, undergoing cleavage and activation by the pyogenes SpeB protease, leading to an inflammatory response that curtails bacterial growth during invasive skin infection. However, the cleavage of IL-1 beta by SpeB has a dual role, promoting streptococcal infection of the nasopharynx by disrupting colonization resistance mediated by the microbiota.

Biological Activity

Measured by its ability to induce NF-kB signaling in 293-IL1 Res cells. The ED50 for this effect is 20-100 pg/mL.

Species

Human

Source

E. coli

Tag

Tag Free

Accession

P01584 (A117-S269)

Gene ID
Synonyms
Interleukin-1 beta; Catabolin; IL1F2; IL1B.
AA Sequence

APVRSLNCTLRDSQQKSLVMSGPYELKALHLQGQDMEQQVVFSMSFVQGEESNDKIPVALGLKEKNLYLSCVLKDDKPTLQLESVDPKNYPKKKMEKRFVFNKIEINNKLEFESAQFPNWYISTSQAENMPVFLGGTKGGQDITDFTMQFVSS

Molecular Weight

Approximately 16.61 kDa

Purity

Greater than 95% as determined by reducing SDS-PAGE.

Appearance

Solution.

Formulation

Supplied as a 0.2 μm filtered solution of 20 mM Tris-HCl, 150 mM NaCl, pH 7.5.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Storage & Stability

Stored at -80°C for 1 year. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.

Shipping

Shipping with dry ice.

Documentation
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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IL-1 beta Protein, Human (solution)
Cat. No.:
HY-P70586
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