missing translation for 'onlineSavingsMsg'
Learn More
  1. Home
  2. Products
  3. Recombinant Proteins
  4. R&D Systems™ Recombinant Human IL-4 Protein, Animal-Free

R&D Systems™ Recombinant Human IL-4 Protein, Animal-Free

Product Code. 18766035
Click to view available options
Quantity:
1 mg
50 μg
Unit Size:
1mg
50µg
This item is not returnable. View return policy

Product Code. 18766035

Brand: R&D Systems™ BT004AFL050

Please to purchase this item. Need a web account? Register with us today!

This item is not returnable. View return policy

Description

Intended for preclinical researchers who may transition to GMP IL-4 for their clinical work

Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. Kitamura, T. et al. (1989) J. Cell Physiol. 140:323. The ED50 for this effect is 0.0400-0.320 ng/mL. The specific activity of Animal-FreeTM Recombinant Human IL-4 is >1.0x107 IU/mg, which is calibrated against the human IL-4 WHO International Standard (NIBSC code: 88/656).
TRUSTED_SUSTAINABILITY

Specifications

Accession Number P05112.1
For Use With (Application) Bioactivity
Formulation Lyophilized from a 0.2μm filtered solution in PBS with Trehalose.
Gene ID (Entrez) 3565
Molecular Weight (g/mol) M.W. (Observed): 13 kDa, under reducing conditions., M.W. (Theoretical): 15.1 kDa
Quantity 50 μg
Source E. coli-derived human IL-4 protein His25-Ser153, with an N-terminal Met Produced using non-animal reagents in an animal-free laboratory.
Storage Requirements Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 °C as supplied. 1 month, 2 to 8 °C under sterile conditions after reconstitution. 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Endotoxin Concentration <0.10 EU per 1μg of the protein by the LAL method.
Gene Alias B cell growth factor 1, BCDF, B-cell stimulatory factor 1, BCGF1, BCGF-1, binetrakin, BSF1, BSF-1, IL4, IL-4B_cell stimulatory factor 1, IL4E12, interleukin 4, interleukin-4, Lymphocyte stimulatory factor 1, MGC79402, Pitrakinra
Conjugate Unconjugated
Species Human
Reconstitution Reconstitute at 500μg/mL in PBS.
Purity or Quality Grade >97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
Protein IL-4
Show More Show Less
Product Content Correction

Your input is important to us. Please complete this form to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Thank You! Your feedback has been submitted. Fisher Scientific is always working to improve our content for you. We appreciate your feedback.