Biotinylated Human IL-21 R Protein, Fc, Avitag™ (MALS verified)

Interleukin-21 receptor (IL21R) is also known as CD antigen CD360, Novel interleukin receptor (NILR), is a receptor for interleukin-21 and belongs to the type I cytokine receptor family or type 4 subfamily. IL21R contains two fibronectin type-III domains. IL21R is selectively expressed in lymphoid tissues and most highly expressed in thymus and spleen. IL21R transduces the growth promoting signal of IL21, and is important for the proliferation and differentiation of T cells, B cells, and natural killer (NK) cells.

Product Specifications

Background

Specifications

This protein carries a human IgG1 Fc tag at the C-terminus, followed by an Avi tag (Avitag™) . The protein has a calculated MW of 53.1 kDa. The protein migrates as 65 -80 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

Accession Number

Q9HBE5-1

Expression Region

Cys 20 - Pro 236

Host

HEK293

Target

IL-21 R

Conjugation

Biotin-labeled

Tag

C-Fc & C-Avi

Source

Human

Stability

-20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution. For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Endotoxin

1.0 EU per μg

Purity

90%

Bioactivity

Immobilized Human IL-21, premium grade (Cat. No. IL1-H5213) at 5 μg/mL (100 μL/well) can bind Biotinylated Human IL-21 R Protein, Fc,Avitag (Cat. No. ILR-H82F7) with a linear range of 2-39 ng/mL (QC tested).