Recombinant Human IL-21 Animal-Free Protein

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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.

Product Details

Summary
Reactivity HuSpecies Glossary
Applications PAGE, Bioactivity
Format
Animal Free
Concentration
LYOPH

Order Details

View Available Formulations

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

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 -80C. Avoid 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. Peptides and proteins are guaranteed for 3 months from date of receipt.

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Perforin, also known as the pore-forming protein, pfp, is a 70 kD cytolytic protein expressed in the cytoplasmic granules of cytotoxic T lymphocytes (CTLs) and natural killer (NK) cells. It is one of the major effector molecules used by CTL and NK cel...  Read full blog post.

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Bioinformatics

Gene Symbol IL21