LSBio
Mouse IL21 Protein (Recombinant)

Mouse IL21 Protein (Recombinant)

Expression SystemEscherichia coli (Prokaryotic)
Format:Lyophilized
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$287.00each
Catalog Number: LS-G136252-2

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Overview

Description
IL-21 is a pleiotropic cytokine produced by CD4+ T cells in response to antigenic stimulation. Its action generally enhances antigen-specific responses of immune cells. The biological effects of IL-21 include: inducing the differentiation of T cell-stimulated B cells into plasma cells and memory B cells; the stimulation of IgG production in conjunction with IL-4; and the induction of apoptotic effects in naive B cells and stimulated B cells in the absence of T-cell signaling. Additionally, IL-21 promotes the anti-tumor activity of CD8+ T cells and NK cells. IL-21 exerts its effect through binding to a specific type I cytokine receptor, IL-21R, which also contains the ? chain (?c) found in other cytokine receptors, including IL-2, IL-4, IL-7, IL-9 and IL-15. The IL-21/IL-21R interaction triggers a cascade of events, which includes activation of the tyrosine kinases JAK1 and JAK3, followed by activation of the transcription factors STAT1 and STAT3. Recombinant Murine IL-21 is a 15.0 kDa protein consisting of 130 amino acid residues.
Category
Proteins & Peptides > Proteins > Recombinant Proteins
Alternative Names
IL21 | Interleukin 21 | Interleukin-21 | Interleukin-21 isoform | Za11 | IL-21
Origin Species
Ms
NCBI GenBank
NM_021803
SwissProt
Q9HBE4

Protein

Expression System
E.coli
Molecular Weight
15.0 kDa
Protein Type
Recombinant
Amino Acid Sequence
1MHKSSPQGPD RLLIRLRHLI DIVEQLKIYE NDLDPELLSA PQDVKGHCEH AAFACFQKAK
61LKPSNPGNNK TFIIDLVAQL RRRLPARRGG KKQKHIAKCP SCDSYEKRTP KEFLERLKWL
121LQKMIHQHLS

130 aa

Format

Purity
>98%
Conjugate/Label
Unconj
Endotoxin Level
< 0.1 EU/µg
Format
Lyophilized
Formulation
Lyophilized from sterile filtered 2mM Sodium Citrate, pH 4
Animal Free
Yes
Purity Measurement Method
SDS-PAGE

Storage & Handling

Storage Conditions
Before reconstitution: Short term: Room temperature; Long term: -20°C to -80°C. After reconstitution: Short term: 4°C; Long term: Aliquot and store with a carrier protein at -20°C to -80°C. Avoid freeze thaw cycles. Microcentrifuge before opening.

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To request an SDS/MSDS form for this product, please contact our Technical Support department at: technical@vectorlabs.com.