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Recombinant Rat Interleukin 1 Alpha

Cat. No.: Il1a-92R
Product Overview: Recombinant Rat Interleukin-1αproduced inE.Coliis single, a non-glycosylated, Polypeptide chain containing 155amino acids and having a molecular mass of 17703 Dalton. The IL-1 is purified by proprietary chromatographic techniques.
Description: Interleukin-1 alpha is a proinflammatory cytokine produced by a wide variety of cell types, including macrophages, osteoblasts, monocytes and hepatocytes. Circulating levels of are normally low and only rise after stimulation by agents such as those produced byinflammation, infection or microbial endotoxins. IL-1 alpha possesses a wide variety of biological activities and exerts its effects by binding to specific cell surface receptors.
Source: Escherichia Coli.
Amino Acid Sequence: The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Pro-His-Ser-Phe.
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.
Formulation: The protein was lyophilized from a concentrated (1 mg/ml) sterile solution containing 50 mM Tris-HCL, pH= 8.
Solubility: It is recommended to reconstitute the lyophilized Interleukin 1a in sterile 18 MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Specific Activity: The ED50as determined by the dose-dependant stimulation of murine D10S cells is < 0.005 ng/ml, corresponding to a Specific Activity of 2 x 108 IU/mg.
Protein Content: Protein quantitation was carried out by two independent methods: 1. UV spectroscopy at 280 nm using the absorbency value of 0.751 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 standard solution of IL-1 as a Reference Standard.
Stability: Lyophilized Interleukin-1a although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL1 should be stored at 4°Cbetween 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.
Gene Name: Il1a interleukin 1 alpha [ Rattus norvegicus ]
Synonyms: Il1a; interleukin 1 alpha; IL-1 alpha ; interleukin-1 alpha
Gene ID: 24493
mRNA Refseq: NM_017019
Protein Refseq: NP_058715
UniProt ID: P16598
Chromosome Location: 3q36
Pathway: Apoptosis; Cytokine-cytokine receptor interaction; Graft-versus-host disease; Hematopoietic cell lineage; MAPK signaling pathway; Prion diseases; Type I diabetes mellitus
Function: cytokine activity; interleukin-1, Type I receptor binding; protein binding

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