Online Inquiry & Support

USA: 1-631-626-9181   Fax: 1-631-614-7828
Europe: 44-207-097-1828
Email: info@creative-bioarray.com

ActoFactor™ Recombinant Human Interleukin 4

Bookmark and Share
  • Specification
  • Recommended Products
  • Cat.No.
  • CSC-CTK0090
  • Description
  • Interleukin-4 (IL-4) is a pleiotrophic cytokine produced by activated T cells, mast cells and basophils. IL-4 stimulates the activation and differentiation of B cells as well as other hematopoietic and non-hematopoietic cells. Recombinant human IL-4 is a 14 kDa protein containing 130 amino acid residues.
  • Species
  • Human
  • Product Overview
  • Human IL4 expressed in E.coli
  • Sequence
  • A DNA sequence encoding mature human IL-4 was expressed in E. coli.
  • Size
  • CAT# CSC-CTK0090-10 (10 μg); CAT# CSC-CTK0090-50 (50 μg)
  • Expression System
  • E.coli
  • Purity
  • Greater than 97% as determined by SDS-PAGE and visualized by silver stain
  • Activity
  • The biological activity of human IL-4 was measured in a cell proliferation assay using the factor-dependent human cell line, TF-1. The ED50 for this effect is typically 0.05 - 0.2 ng/mL.
  • Endotoxin Level
  • Endotoxin level is less than 0.1 ng per μg of the cytokine, as determined by the LAL method.
  • Formulation
  • Lyophilized from a sterile-filtered solution in PBS containing 50 μg of bovine serum albumin per 1 μg of cytokine.
  • Reconstitution
  • It is recommended that sterile phosphate-buffered saline containing at least 0.1% human serum albumin or bovine serum albumin be added to the vial to prepare a stock solution of no less than 5 μg /mL of the cytokine.
  • Storage & Stability
  • The lyophilized powder is stable for greater than six months at -20°C to -70°C. Reconstituted IL-4 can be stored under sterile conditions at 2°C to 4°C for one month or at -20°C to -70°C for three months without detectable loss of activity. Avoid repeated freezing and thawing.

Citation Guidance:
If you use this products in your scientific publication, it should be cited in the publication as: Creative Bioarray cat no. If your paper has been published, please click here to submit the Pub Med ID of your paper to get a coupon.

Price Inquiry

Please input "bioarray" as verification code.

SEARCH

tissue samples, tissue arrays, cells, microorganisms, probes and services for your research.

  

SEARCH

Contact Us
    • USA
      45-1 Ramsey Road, Shirley, NY 11967, USA
      Tel: 1-631-626-9181
      Fax: 1-631-614-7828
      Email: info@creative-bioarray.com
      Europe
      Tel: 44-207-097-1828
      Email: info@creative-bioarray.com
Ordering Information
    • Payment methods we support:
      ✭ Invoice / Purchase Order
      ✭ Credit card
Contact Us
USA
45-1 Ramsey Road, Shirley, NY 11967, USA
Tel: 1-631-626-9181
Fax: 1-631-614-7828
Email: info@creative-bioarray.com

Europe
Tel: 44-207-097-1828
Email: info@creative-bioarray.com