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Recombinant Human Interleukin 3 (colony-stimulating factor, multiple), His-tagged

Cat. No.: IL3-132H
Product Overview: Interleukin-3 Human Recombinant produced ininsect cellsis a single, glycosylated polypeptide chain containing 133 amino acids and having a molecular mass of 15000 Dalton. The IL-3 CSF is fused to a C-terminal His-tag (6xHis) and purified by proprietary chromatographic techniques.
Description: IL3 is a potent growth promoting cytokine. This cytokine is capable of supporting the proliferation of a broad range of hematopoietic cell types. It is involved in a variety of cell activities such as cell growth, differentiation and apoptosis. This cytokine has been shown to also possess neurotrophic activity, and it may be associated with neurologic disorders.
Source: Insect Cells.
Physical Appearance: Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation: Lyophilized from a concentrated (1mg/ml) solution in water containing 0.5X PBS pH7.4.
Solubility: It is recommended to reconstitute the lyophilized Interleukin-3 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Purity: Greater than 95.0% as determined by:(a) Analysis by RP-HPLC.(b) Analysis by SDS-PAGE.
Amino Acid Sequence: The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Pro-Ala-Pro-Thr.
Biological Activity: The ED50as determined by the dose-dependant stimulation of TF-1 cells is < 0.1 ng/ml, corresponding to a Specific Activity of 1 x 10 7 IU/mg.
Protein Content: Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 0.84 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-3 as a Reference Standard.
Stability: Lyophilized Interleukin-3 although stable at room temperature for 3 weeks, should be stored desiccated below -18℃. Upon reconstitution IL3 should be stored at 4℃between 2-7 days and for future use below -18℃. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Gene Name: IL3 interleukin 3 (colony-stimulating factor, multiple) [ Homo sapiens ]
Synonyms: IL3; interleukin 3 (colony-stimulating factor, multiple); IL-3; MCGF; MGC79398; MGC79399; MULTI-CSF; interleukin 3; mast-cell growth factor; P-cell stimulating factor; hematopoietic growth factor; multilineage-colony-stimulating factor; P-cell-stimulating factor
Gene ID: 3562
mRNA Refseq: NM_000588
Protein Refseq: NP_000579
MIM: 147740
UniProt ID: P08700
Chromosome Location: 5q23-q31
Pathway: Apoptosis; Asthma; Cytokine-cytokine receptor interaction; Fc epsilon RI signaling pathway; Hematopoietic cell lineage; Jak-STAT signaling pathway
Function: cytokine activity; growth factor activity; interleukin-3 receptor binding; protein binding

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