Abbreviation
Recombinant Human IL3 protein (Active)
Purity
Greater than 95% as determined by SDS-PAGE.
Endotoxin
Less than 0.01 EU/µg as determined by LAL method.
Activity
The ED50 as determined in a cell proliferation assay using TF‑1 human erythroleukemic cells is 0.3-1.5 ng/ml.
Alternative Names
Colony stimulating factor multiple; Hematopoietic growth factor; IL 3; IL-3; IL3; IL3_HUMAN; Interleukin 3 (colony stimulating factor; multiple); Interleukin 3; Interleukin-3; Mast cell growth factor; MCGF; MGC79398; MGC79399; Multi CSF; Multilineage colony stimulating factor; Multipotential colony stimulating factor; Multipotential colony-stimulating factor; OTTHUMP00000065963; P cell stimulating factor ; P-cell-stimulating factor
Species
Homo sapiens (Human)
Expression Region
20-152aa
Target Protein Sequence
APMTQTTPLKTSWVNCSNMIDEIITHLKQPPLPLLDFNNLNGEDQDILMENNLRRPNLEAFNRAVKSLQNASAIESILKNLLPCLPLATAAPTRHPIHIKDGDWNEFRRKLTFYLKTLENAQAQQTTLSLAIF
Note: The complete
sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is
translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application,
please explicitly request the full and complete sequence of this protein before ordering.
Protein Length
Full Length of Mature Protein
Tag Info
C-terminal 6xHis-tagged
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer
Lyophilized from a 0.2 μm filtered 1xPBS, pH 7.4
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Lead Time
Basically, we can dispatch the products out in 5-10 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Datasheet & COA
Please contact us to get it.
Description
Interleukin-3 is a pleiotropic cytokine that drives proliferation and differentiation of multipotent hematopoietic progenitors, making it essential for studies of early myeloid and mast cell lineage commitment. This recombinant human IL-3, spanning the full mature sequence (aa 20–152) with a C-terminal 6×His tag, demonstrates high signaling potency with an ED50 of 0.3–1.5 ng/mL in TF-1 cell proliferation assays, confirming its suitability for functional studies of JAK/STAT and MAPK pathway activation. Endotoxin levels below 1.0 EU/μg minimize LPS-driven artifacts, which supports use in sensitive immune cell differentiation assays, in vivo hematopoiesis models, and as a reference standard in cytokine detection platforms. Purity exceeding 95% by SDS-PAGE, combined with this stringent endotoxin control, satisfies the criteria typical for antibody validation workflows including ELISA coating and positive control applications.