407615-M

Interleukin-1β, Human, Recombinant, E. coli

• Synonym(s): Interleukin-1β, Human, Recombinant, E. coli, rhIL-1β
• CAS Number: 97599-21-8
• UNSPSC Code: 12352202

Properties

• assay: ≥97% (SDS-PAGE)
• Quality Level: 100
• form: lyophilized
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze
• impurities: ≤1.0 EU/μg Endotoxin (EU/μg IL-1β)
• storage temp.: −70°C

Description

General description

Recombinant, human interleukin-1β expressed in E. coli. Major form of interleukin-1 secreted by monocytes and macrophages. IL-1β is activated by proteolytic cleavage of the precursor molecule. Increases nitric oxide production in smooth muscle cells and suppresses apoptosis in rat ovarian follicles. Involved in inflammatory and immune responses and promotes wound healing. Induces nitric oxide synthase in insulin-producing cells. 1 µg of IL-1β corresponds to 1.9 x 10⁵ WHO units.

Recombinant, human interleukin-1β expressed in E. coli. Major form of interleukin-1 secreted by monocytes and macrophages. Induces nitric oxide synthase in pancreatic and smooth muscle cells and suppresses apoptosis in rat ovarian follicles. Involved in inflammatory and immune responses and promotes wound healing.

Biochem/physiol Actions

ED₅₀ = <12 pg/ml as measured in a cell proliferation assay using the murine T-cell line, D10.G4.1 (Symons, J.A. et al. 1987)

Warning

Toxicity: Standard Handling (A)

Physical form

Lyophilized from sterile-filtered PBS, 50 µg BSA/µg IL-1β.

Reconstitution

Following reconstitution, aliquot and freeze (-70°C) for long term storage or refrigerate (4°C) for short term storage. Avoid freeze/thaw cycles of solutions. Stock solutions are stable for up to 1 month at 4°C or for up to 3 months at -70°C.

Reconstitute to a concentration of ≥10 µg/ml with sterile PBS containing ≥0.1% HSA or BSA.

Other Notes

Chun, S.Y., et al. 1995. Endocrinology136, 3120.
Kunz, D., et al. 1994. Biochem. J. 304, 337.
Eizirik, D.L., et al. 1993. FEBS Lett. 317, 62.
Dinarello, C>A> 1991. Blood77, 1627.
Casagli, M.C., et al. 1989. Biochem. Biophys. Res. Commun.162, 357.
Symons, J.A., et al. 1987. In Lymphokines and interferons, A Practical Approach (Clemens, M.J., et al. eds.) IRL Press, Oxford p. 272.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable