Product Browser

Last updated: 2020/5/24

Product Compare

Product Compare Cancel Click this icon to add products to compare list. Select up to 10 products.

Quick Order (Tutorial)

Input Catalog #,
place order here!
Catalog # :
  • Where to buy
  • Choose your location
Bulk order
Custom Services
2019 Next Day Shipping

IL4 (Human) Recombinant Protein BioActive

  • Catalog # : P3639
  • Visit Frequency :
  • Countries :
  • Specification
  • Product Description:
  • Human IL4 (P05112, His 25 - Ser 153) partial recombinant protein expressed in Escherichia coli.
  • Host:
  • Escherichia coli
  • Theoretical MW (kDa):
  • 15
  • Form:
  • Lyophilized
  • Preparation Method:
  • Escherichia coli expression system
  • Purification:
  • Ion exchange column and HPLC reverse phase column
  • Purity:
  • > 90% by SDS-PAGE and HPLC
  • Endotoxin Level:
  • < 0.1 ng/ug (1 EU/ug)
  • Activity:
  • The ED50 was determined by the dose-dependent stimulation of the proliferation of human TF-1 cells is <= 0.1 ng/mL, corresponding to a specific activity of >1 x 107 units/mg.
  • Storage Buffer:
  • Lyophilized from 2.5% glycine, 0.5% sucrose, 0.01% Tween 80, 5 mM Glutamic acid, pH 4.5
  • Storage Instruction:
  • Store at -20°C on dry atmosphere for 2 years.
    After reconstitution with deionized water, store at 4°C for 1 month or store at -20°C for 6 months.
    Aliquot to avoid repeated freezing and thawing.
  • Applications
  • Functional Study
  • SDS-PAGE
  • Application Image
  • Functional Study
  • SDS-PAGE
  • Gene Information
  • Entrez GeneID:
  • 3565
  • Gene Name:
  • IL4
  • Gene Alias:
  • BCGF-1,BCGF1,BSF1,IL-4,MGC79402
  • Gene Description:
  • interleukin 4
  • Gene Summary:
  • The protein encoded by this gene is a pleiotropic cytokine produced by activated T cells. This cytokine is a ligand for interleukin 4 receptor. The interleukin 4 receptor also binds to IL13, which may contribute to many overlapping functions of this cytokine and IL13. STAT6, a signal transducer and activator of transcription, has been shown to play a central role in mediating the immune regulatory signal of this cytokine. This gene, IL3, IL5, IL13, and CSF2 form a cytokine gene cluster on chromosome 5q, with this gene particularly close to IL13. This gene, IL13 and IL5 are found to be regulated coordinately by several long-range regulatory elements in an over 120 kilobase range on the chromosome. Two alternatively spliced transcript variants of this gene encoding distinct isoforms have been reported. [provided by RefSeq
  • Other Designations:
  • B cell growth factor 1,B_cell stimulatory factor 1,lymphocyte stimulatory factor 1
  • Related Disease
  • RSS
  • YouTube
  • Linkedin
  • Facebook