Recombinant Human IL-4 His Protein

SDS-Page: Recombinant Human IL-4 His Protein [NBC1-22613] - 3ug by SDS-PAGE under reducing condition and visualized by coomassie blue stain.

• Reactivity: Hu
• Applications: PAGE, Bioactivity
• Concentration: 0.5 mg/ml

Recombinant Human IL-4 His Protein Summary

• Description: A bioactive recombinant protein with a N-Terminal His-tag and corresponding to the amino acids 25-153 of Human IL-4
  
  

  Source: E.coli

  Amino Acid Sequence: MGSSHHHHHH SSGLVPRGSH MHKCDITLQE IIKTLNSLTE QKTLCTELTV TDIFAASKNT TEKETFCRAA TVLRQFYSHH EKDTRCLGAT AQQFHRHKQL IRFLKRLDRN LWGLAGLNSC PVKEANQSTL ENFLERLKTI MREKYSKCSS

• Details of Functionality: The ED50 for this effect is less or equal to 0.5 ng/ml. Measured in a cell proliferation assay using TF1 human erythroleukemic cells.
• Source: E. coli
• Protein/Peptide Type: Recombinant Protein
• Gene: IL4
• Purity: >95%, by SDS-PAGE
• Endotoxin Note: < 1.0 EU per 1 microgram of protein (determined by LAL method)

Applications/Dilutions

• Dilutions:
  • Bioactivity
  • SDS-Page
• Theoretical MW: 17.2 kDa.
  Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

• Storage: Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
• Buffer: 20 mM Tris-HCl buffer (pH 8.0), 10% glycerol
• Preservative: No Preservative
• Concentration: 0.5 mg/ml
• Purity: >95%, by SDS-PAGE

Alternate Names for Recombinant Human IL-4 His Protein

• B cell growth factor 1
• BCDF
• B-cell stimulatory factor 1
• BCGF1
• BCGF-1
• binetrakin
• BSF1
• BSF-1
• IL4
• IL-4
• IL-4B_cell stimulatory factor 1
• IL4E12
• interleukin 4
• interleukin-4
• Lymphocyte stimulatory factor 1
• MGC79402
• pitrakinra

Background

Interleukin-4 (IL-4) is a pleiotropic cytokine that has many biological roles, including the stimulation of activated B-cell and T-cell proliferation, and the differentiation of naive helper T-cell to Th2 cells. Interleukin-4 is a co-stimulator of DNA-synthesis and is induces the expression of class II MHC molecules on resting B-cells. It also enhances both secretion and cell surface expression of IgE and IgG1. Recombinant Interleukin-4 protein, fused to His-tag at N-terminus, was expressed in E.coli and was purified by conventional chromatography techniques, after refolding of the isolated inclusion bodies in a renaturation buffer.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 3 months from date of receipt.

Bioinformatics

• Gene Symbol: IL4