IL 1 beta Human

Product Name: IL 1 beta Human

Product No: CYT-208

Synonym(s): Interleukin-1 beta Human Recombinant, Catabolin, Lymphocyte-activating factor (LAF), Endogenous Pyrogen (EP), Leukocyte Endogenous Mediator (LEM), Mononuclear Cell Factor (MCF), IL1F2, IL-1 beta.

One-Letter-Code: The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Pro-Val-Arg-Ser.

Description: Interleukin-1 beta Human Recombinant produced in E.Coli is a non-glycosylated, Polypeptide chain containing 153 amino acids and having a molecular mass of 17000 Dalton.The IL-1b is purified by proprietary chromatographic techniques.

Protein Derived From: Escherichia Coli.

Physical Appearance: Sterile Filtered White lyophilized (freeze-dried) powder.

Purity: Greater than 98.0% as determined by:(a) Analysis by RP-HPLC.(b) Analysis by SDS-PAGE.

Stability: Lyophilized Interleukin-1b although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL1b should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.

Biological Activity: The specific activity as determined in the test of augmentation of lymphocyte proliferation assay using mouse thymus was found to be 200,000,000 IU/mg.

Solubility: It is recommended to reconstitute the lyophilized Interleukin-1b in sterile 18MOmega-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

Protein content: Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 0.631 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a calibrated solution of IL-1 beta Recombinant as a Reference Standard.

References: Title:Proinflammatory Cytokine IL-1b Stimulates IL-8 Synthesis in Mast Cells via a Leukotriene B4 Receptor 2-Linked Pathway, Contributing to Angiogenesis.Publication:Published online before print March 1, 2010, doi: 10.4049/ jimmunol.0901735 The Journal of Immunology April 1, 2010 vol. 184 no. 7 3946-3954.Link: of IL-8 mRNA was dramatically enhanced by IL-1b,HMC-1 cells were stimulated with IL-1b. 2.Title:Contribution of IL-1 to resistance toStreptococcus pneumoniaeinfection .Publication: Int. Immunol. (2008) 20 (9): 1139-1146. doi: 10.1093/intimm/dxn071 First published online: July 1, 2008Link: sulphide decreases IL-1b induced activation of fibroblast?like synoviocytes from patients with osteoarthritisPublications:journal of cellular and molecular medicine 19.1 (2015): 187-197Link: 4.Title:Riampin Augments Cytokine-Induced Nitric Oxide Production in Human Alveolar Epithelial CellsPublications:Antimicrobial agents and chemotherapy 50.1 (2006): 396-398Link: 5.Title:Adiponectin may contribute to synovitis and joint destruction in rheumatoid arthritis by stimulating vascular endothelial growth factor, matrix metalloproteinase-1, and matrix metalloproteinase-13 expression in fibroblast-like synoviocytes more than proinflammatory mediatorsPublication:Arthritis Res Ther11.6 (2009): R161.Link:

Special Note(s): ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.