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Your Position: Home > Protein > IL-3 > IL3-H52H9

Human IL-3 Protein, His Tag, premium grade

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  • Synonym
    IL3,MCGF,MGC79398,MGC79399,MULTI-CSF,Interleukin-3
  • Source
    Human IL-3 Protein, His Tag, premium grade(IL3-H52H9) is expressed from human 293 cells (HEK293). It contains AA Ala 20 - Phe 152 (Accession # P08700-1).
    Predicted N-terminus: Ala 20
    Human IL-3 Protein, His Tag, premium grade (IL3-H52H9), designed for preclinical stage, has the same activity and performance with GMP Human IL-3, which enables a seamless transition from preclinical development to clinical phases. Premium Grade product offer a cost efficient alternative of GMP Grade products for the early development phase when safety of raw materials is not top priority. By using Premium Grade products in early development phase, you can transition easily into clinical and commercial phase without need to revalidate the raw materials and modify manufacturing process.
  • Molecular Characterization
    IL-3 Structure

    This protein carries a polyhistidine tag at the C-terminus

    The protein has a calculated MW of 17.0 kDa. The protein migrates as 25-35 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Endotoxin
    Less than 0.3 EU per μg by the LAL method.
  • Sterility
    The sterility testing was performed by membrane filtration method.
  • Purity

    >90% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

    Contact us for customized product form or formulation.

  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • Storage

    For long term storage, the product should be stored at lyophilized state at -20°C or lower.

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
SDS-PAGE
IL-3 SDS-PAGE

Human IL-3 Protein, His Tag, premium grade on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.

SEC-MALS
IL-3 MALS images

The purity of Human IL-3 Protein, His Tag, premium grade (Cat. No. IL3-H52H9) is more than 85% and the molecular weight of this protein is around 20-30 kDa verified by SEC-MALS.

Bioactivity-ELISA
 IL-3 ELISA

Immobilized Human IL-3 Protein, His Tag, premium grade (Cat. No. IL3-H52H9) at 5 μg/mL (100 μL/well) can bind Human IL-3 R alpha Protein, Llama IgG2b Fc Tag (Cat. No. ILA-H5255) with a linear range of 0.039-2.5 μg/mL (QC tested).

Bioactivity-BLI
 IL-3 BLI

Loaded Human IL-3 R alpha, Fc Tag (Cat. No. ILA-H5252) on Protein A Biosensor, can bind Human IL-3 Protein, His Tag, premium grade (Cat. No. IL3-H52H9) with an affinity constant of 0.71 μM as determined in BLI assay (ForteBio Octet Red96e) (QC tested).

 IL-3 BLI

Loaded Biotinylated Human IL-3 R alpha, Fc,Avitag (Cat. No. ILA-H82F3) on SA Biosensor, can bind Human IL-3 Protein, His Tag, premium grade (Cat. No. IL3-H52H9) with an affinity constant of 0.35 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).

  • Background
    Interleukin-3 (IL-3) is an interleukin, a type of biological signal (cytokine) which is encoded by the IL-3 gene located on chromosome 5 and produced primarily by activated T cells beside human thymic epithelial cells, activated murine mast cells, murine keratinocytes and neurons/astrocytes. The protein acts in hematopoiesis by controlling the production, differentiation, and function of 2 related white cell populations of the blood, the granulocytes and the monocytes-macrophages. The human IL-3 reported to be a monomer, as it is known, contains 133 amino acids residues which is a single non-glycosylated polypeptide. Specifically, human and murine IL-3 share low homology and it does not show activity on murine cells.
  • Clinical and Translational Updates

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