SKU: 80419342

IL-21 R His Tag Protein, Human

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Description

IL-21 R His Tag Protein, HumanProduct Specification Species Human Synonyms IL21R, CD360, NILR Accession Q9HBE5 1 Amino Acid Sequence Cys20 Pro236 with His Tag at the C Terminus Expression System HEK293 Molecular Weight 35 50kDa (Reducing) Purity 95% by SDS PAGE & > 95% SEC HPLC Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized powder Storage Buffer PBS, PH7. 4, 5% trehalose Reconstitution Reconstitute at 0. 1 1 mg ml according to the size in ultrapure water

Product Specification


Species Human
Synonyms IL21R, CD360, NILR
Accession Q9HBE5-1
Amino Acid Sequence

Cys20-Pro236 with His Tag at the C-Terminus

Expression System HEK293
Molecular Weight

35-50kDa (Reducing)

Purity >95% by SDS-PAGE & > 95% SEC-HPLC
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized powder
Storage Buffer

PBS, PH7.4, 5% trehalose

Reconstitution

Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.

Stability & Storage

· 12 months from date of receipt, lyophilized powder stored at -20 to -80℃.
· 3 months, -20 to -80℃ under sterile conditions after reconstitution.
· 1 week, 2 to 8℃ under sterile conditions after reconstitution.
· Please avoid repeated freeze-thaw cycles.

Reference

1.Andersen KG, Shylakhter I, Tabrizi S, Grossman SR, Happi CT, Sabeti PC. Genome-wide scans provide evidence for positive selection of genes implicated in Lassa fever. Philos Trans R Soc Lond B Biol Sci. 2012 Mar 19;367(1590):868-77.
2.Collins M, Whitters MJ, Young DA. IL-21 and IL-21 receptor: a new cytokine pathway modulates innate and adaptive immunity. Immunol Res. 2003;28(2):131-40.

Background

IL-21 receptor (IL-21R/CD360/NILR) belongs to the type I cytokine receptor family, subfamily 4. It is a single-pass transmembrane protein composed of two fibronectin type-III domains, a WSXWS folding motif and a Box1 JAK-binding motif, and together with the common γ-chain it forms the high-affinity IL-21 receptor complex. Selectively enriched in thymus and spleen, IL-21R is broadly expressed on T, B and NK cells and, via the JAK-STAT pathway, transduces IL-21 signals that drive proliferation, differentiation and memory formation, thereby bridging innate and adaptive immunity. Clinically, hyper-activation of the IL-21/IL-21R axis promotes autoantibody production and is implicated in multiple autoimmune diseases, making this pathway a key biomarker and therapeutic target for autoantibody-mediated disorders.

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Exchange/Return Notes
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SKU: 80419342

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Tammy James
Houston, US
★★★★★ 5
HEALTH & BEAUTY
Flavor Name: XL silicone socks 2 pairs
LOVE IT
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Reviewed in the United States on April 13, 2026
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Barb W
Battle Creek, US
★★★★★ 3
Stains easily. Tight for men's size 11 feet
Flavor Name: XL silicone socks 2 pairs, Flavor Name: XL silicone socks 2 pairs
Husband wore dark cotton socks over these gel foot covers overnight and the covers picked up color from the socks. Tried hand washing, even dabbing with a bleach soaked paper towel, but the stains remained. The covers are a bit tight for men's size 11. Edit: After a few more hand washings the stains began to fade. However one tore around the leg opening when taking it off.
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Reviewed in the United States on August 10, 2024
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Verified Purchase
DD
Whiting, US
★★★★★ 1
Worthless. Tore on first use.
Flavor Name: XL silicone socks 2 pairs
The first time I put these on my feet, the whole toe broke right through. They were a proper fit and my feet are well pedicured. Just very poor quality. I don’t recommend.
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Reviewed in the United States on August 2, 2024
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Pat Belanger
Fort Morgan, US
★★★★★ 5
Best fit!
Flavor Name: XL silicone socks 2 pairs
Search no further, these are the BEST! They are smazing at conforming to the shape of your feet. They fit snuggly with no sags/bags or uncomfortable pressure or squeezing of your toes.
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Reviewed in the United States on March 8, 2025
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Verified Purchase
Tasha U
Port Orchard, US
★★★★★ 4
Helps dry, cracked feet
Flavor Name: XL silicone socks 2 pairs
We use these on my husband’s cracked feet in the winter and put on a thick cream under these socks. They are nice because hair, dirt and that kind of stuff doesn’t stick to the outside. I do wish them came in more sizes and colors. They were a little small for my husband, but still worked good enough. My husband isn’t thrilled about wearing pink socks around the house. At least it’s just around the house and not out in public though.
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Reviewed in the United States on March 6, 2025

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