SKU: 30305140303

Biotinylated IL-21 R His&Avi Tag Protein, Human

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Description

Biotinylated IL-21 R His&Avi Tag Protein, HumanProduct Specification Species Human Synonyms CD360,IMD56,NILR,IL21R,IL 21R Accession Q9HBE5 1 Amino Acid Sequence Cys20 Pro236 with His&Avi Tag at the C Terminus Expression System HEK293 Molecular Weight 40 55kDa (Reducing) Purity 95% by SDS PAGE & > 85% by SEC HPLC Conjugation Biotin Tag Avi 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

Product Specification


Species Human
Synonyms CD360,IMD56,NILR,IL21R,IL-21R
Accession Q9HBE5-1
Amino Acid Sequence

Cys20-Pro236 with His&Avi Tag at the C-Terminus

Expression System HEK293
Molecular Weight 40-55kDa (Reducing)
Purity >95% by SDS-PAGE & > 85% by SEC-HPLC
Conjugation Biotin
Tag Avi 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.Wu Z,et al.(2005) Interleukin-21 receptor gene induction in human T cells is mediated by T-cell receptor-induced Sp1 activity. Mol Cell Biol. 25(22): 9741-52.
2.Tangye SG. Advances in IL-21 biology - enhancing our understanding of human disease. Curr Opin Immunol. 2015 Jun;34:107-15.
3.Rankin AL, MacLeod H, Keegan S, Andreyeva T, Lowe L, Bloom L, Collins M, Nickerson-Nutter C, Young D, Guay H. IL-21 receptor is critical for the development of memory B cell responses. J Immunol. 2011 Jan 15;186(2):667-74.

Background

Interleukin-21 receptor (IL-21R) is a type I single-pass transmembrane glycoprotein belonging to the class I cytokine receptor family. Its structure includes an extracellular immunoglobulin-like domain, a conserved WSXWS motif (responsible for proper folding and transport), and an intracellular Box 1 motif (for JAK kinase binding). It must form a functional receptor complex by associating with the common gamma chain (γc). IL-21R is predominantly expressed on lymphohematopoietic cells such as B cells, T cells, and NK cells. Upon binding to its ligand IL-21, it regulates humoral and cellular immunity through signaling pathways such as JAK-STAT, including promoting B cell differentiation into plasma cells and antibody production (e.g., IgG1), enhancing the cytotoxic functions of NK cells and CD8⁺ T cells, and modulating T cell differentiation (e.g., Th17 and regulatory T cells). Abnormal activation of the IL-21R signaling pathway is closely associated with autoimmune diseases (such as systemic lupus erythematosus and allergic dermatitis) and lymphomas (such as diffuse large B-cell lymphoma). By driving the production of pathogenic autoantibodies and excessive activation of immune cells, it contributes to disease pathogenesis, making it an important therapeutic target for autoimmune disorders and hematological malignancies.

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Exchange/Return Notes
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SKU: 30305140303

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Sarah O.
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★★★★★ 5
A great $30
Color: Grey, Color: Grey
The wood is cheap particle board (probably better bc they are very light weight) but the brackets are plenty strong and sturdy. Advice on the install: your walls may not be exactly 90 degrees. Install one bracket after the other is holding the shelf up. Super pretty.
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Reviewed in the United States on November 13, 2022
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Marta Hajdu
Boise, US
★★★★★ 5
Great shelves but be warned.
Color: Grey
These shelves are great for small items and can definitely hold up to their advertised weight if mounted in a stud. However, DO NOT use the longest screws at all. All the screws are low quality and are likely to break. The medium length ones are sufficient for everything. If your wall faces an exterior concrete wall: break off the tips on the dry wall anchors, they are too long.
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Debbie B
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★★★★★ 5
These are a great corner option
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Was looking for something to set in some corners, and these fit the bill greatly. They are nice looking and easy to assemble and then put up. They hold a plant and some rock items nicely. A good purchase.
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SmartLady
Fort Morgan, US
★★★★★ 5
Would buy again and again
Color: Black, Size: 35.4 Inches
These are beautiful! I thought they’d be hard to install, but very straightforward and easy. They are quality and sturdy. I staggered the shelves and they hold a lot. Great value for the quality. I will be buying more for another room in the house.
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Reviewed in the United States on March 10, 2026
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Rochelle McGhee
Carnegie, US
★★★★★ 5
Made my bathroom look beautiful
Color: White, Size: 15.7 Inches
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