Recombinant Human IL-21 Animal-Free Protein

Bioactivity: Recombinant Human IL-21 Animal-Free Protein [NBP2-76201] - IL-21 induced proliferation of ANBL-6 cells.

SDS-Page: Recombinant Human IL-21 Animal-Free Protein [NBP2-76201] - 1 ug in each lane (-) non-reducing conditions and (+) reducing conditions in a 4-20% Tris-Glycine gel.

Bioactivity: Recombinant Human IL-21 Animal-Free Protein [NBP2-76201] - IL-21 induced proliferation of B9 cells.

• Reactivity: Hu
• Applications: PAGE, Bioactivity
• Format: Animal Free
• Concentration: LYOPH

Recombinant Human IL-21 Animal-Free Protein Summary

• Description: An un-tagged bioactive recombinant protein corresponding to Human IL-21
  
  

  Source: E. coli

  Amino Acid Sequence: MQDRHMIRMR QLIDIVDQLK NYVNDLVPEF LPAPEDVETN CEWSAFSCFQ KAQLKSANTG NNERIINVSI KKLKRKPPST NAGRRQKHRL TCPSCDSYEK KPPKEFLERF KSLLQKMIHQ HLSSRTHGSE DS

  Produced with no materials of animal or human origin using ANIMAL-FREE purification processes.

  Production and Purification

  • No animal-derived ingredients, No FBS
  • E. coli based production system
  • Animal-Free facility, fermentor, columns, filters, labware, lyophilization, and storage
  
  

  Quality Assurance

  • Endotoxin levels at <1 EUs/ug
  • Purity levels at 95% or greater
• Specificity: IL-21 is a monomer, 15.4 kDa (132 aa)
• Preparation Method: Protein is derived from genetically modified E. coli.
• Details of Functionality: B9 cell proliferation, >2.0 x 10^4 units/mg (ED50 acceptance criteria are <50 ng/mL).
• Source: E. coli
• Protein/Peptide Type: Recombinant Protein
• Gene: IL21
• Purity: >95%, by SDS-PAGE
• Endotoxin Note: Acceptance criteria for endotoxin levels are <1 EUs/ug protein (determined by Kinetic LAL Method).

Applications/Dilutions

• Dilutions:
  • Bioactivity
  • SDS-Page
• Theoretical MW: 15.4 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 -20 to -70C as supplied. After reconstitution, store at 2 to 8C for 1 month and at -20 to -70C for long term storage. Avoid repeated freeze-thaw cycles.
• Buffer: Lyophilized from a sterile (0.2 micron) filtered aqueous solution containing 10 mM sodium phosphate, pH 7.5
• Preservative: No Preservative
• Concentration: LYOPH
• Purity: >95%, by SDS-PAGE
• Reconstitution Instructions: Sterile water at 0.1 mg/mL

Notes

Lot Specific Information:
Given endotoxin and ED50 values are acceptance criteria standards. For lot specific values, please contact technical support.

Detailed Reconstitution:
Centrifuge vial before opening. Suspend the product by gently pipetting the recommended solution down the sides of the vial. DO NOT VORTEX. Allow several minutes for complete reconstitution. For prolonged storage, dilute to working aliquots.

Expiration Date:
12 months from date of receipt when stored at -20C to-80C as supplied. 1 month when stored at 4C after reconstituting as directed. 3 months when stored at -20C to -80C after reconstituting as directed.

Alternate Names for Recombinant Human IL-21 Animal-Free Protein

• CVID11
• IL21
• IL-21
• IL-21Za11interleukin-21
• interleukin 21
• interleukin-21 isoform
• Za11

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. This product is guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: IL21