Name : Human IL-37b Protein

Product Source :
Recombinant Human IL-37b Protein is expressed from E.coli without tag. It contains Val46~Asp218.[Accession | Q9NZH6-1]

Molecular Weight :
The protein has a predicted MW of 19.30 kDa same as Tris-Bis PAGE result.

Endotoxin Level :
Less than 1EU per μg by the LAL method.

Purity :
> 95% as determined by Tris-Bis PAGE> 90% as determined by HPLC

Formulation :
Lyophilized from 0.22μm filtered solution in 20mM PB, 150mM NaCl, 2mM DTT (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.

Reconstitution :
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.

Storage and Stability :
-20 to -80°C for 12 months as supplied from date of receipt.-80°C for 3-6 months after reconstitution.2-8°C for 2-7 days after reconstitution.Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

Product Concentration :
Tris-Bis PAGE Human IL-37b on Tris-Bis PAGE under reduced condition. The purity is greater than 95%. SEC-HPLC The purity of Human IL-37b is greater than 90% as determined by SEC-HPLC.

Background :
IL-37 is a unique member of the IL-1 family of cytokines, which functions as a natural suppressor of inflammatory and immune Interleukin-37 (IL-37), a newly described member of IL-1family, functioned as a fundamental inhibitor of innate inflammatory and immune responses. IL-37 has five different isoforms, and IL-37b is the most biologically functional subtype. IL-37b Inhibits PGN Induced Cytokines and Chemokines via the Downregulation of Intracellular Nuclear Factor (NF)-κB, PI3K–Akt, and ERK1/2 Pathways.

Synonyms :
IL-1F7b; IL-HLa; FIL1 zeta; IL-1X; IL-1F7; IL-1H; IL-1H4; IL-1 zeta; IL-1RP1; FIL1Z; IL1F7; IL1H4; IL1RP1

References & Citations :
(1) Liu W, Deng L, Chen Y, Sun C, Wang J, Zhou L, Li H, Luo R. Anti-inflammatory effect of IL-37b in children with allergic rhinitis. Mediators Inflamm. 2014;2014:746846. doi: 10.1155/2014/746846. Epub 2014 Aug 11. PMID: 25177111; PMCID: PMC4142748.

MedChemExpress (MCE) recombinant proteins include: cytokines, enzymes, growth factors, hormones, receptors, transcription factors, antibody fragments, etc. They are often essential for supporting cell growth, stimulating cell signaling pathways, triggering or inhibiting cell differentiation; and are useful tools for elucidating protein structure and function, understanding disease onset and progression, and validating pharmaceutical targets. At MedChemExpress (MCE), we strive to provide products with only the highest quality. Protein identity, purity and biological activity are assured by our robust quality control and assurance procedures.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
Popular product recommendations:
Apolipoprotein A-I/APOA1 Protein
STAT1 Protein
Popular categories:
TWEAK R
VIP receptor type 1