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IL-21 human

品牌
Sigma-Aldrich
货号
SRP3087
规格纯度
recombinant, expressed inE. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture
价格
4312.08 *本价格含增值税费
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数量
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半岛bd体育手机客户端 名称:
IL-21 human
半岛bd体育手机客户端 介绍:

半岛bd体育手机客户端 说明

一般描述

IL21 (interleukin 21) is a member of the γ-chain type I cytokine family, and a four-α-helix bundle pleiotropic cytokine. This gene is localized to human chromosome 4q26–q27. Although, it is predominantly produced by T follicular helper (TFH) and T helper-17 (TH17) cells, it is also produced by CD4+T cells, neutrophils and natural killer cells. Under certain conditions, it is also produced by CD8+T cells. Recombinant human IL-21 is a 15.0 kDa protein consisting of 132 amino acid residues.

生化/生理作用

IL21 (interleukin 21) functions on its heterodimeric receptor IL21R, which is expressed widely on immune and non-immune cells. Therefore, IL21 exerts its effects on a wide range of cell types and has a pleiotropic role in immune response regulation. This protein activates Janus kinase (JAK)-signal transducer and activator of transcription (STAT) signaling pathway and functions through mitogen-activated protein kinase (MAPK) and phosphoinositide 3-kinase (PI3K)-AKT signaling pathways. Studies show that in rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS), IL21 facilitates migration, invasion and production of MMPs (MMP-2, MMP-3, MMP-9, MMP-13) (matrix metalloproteinases). Therefore, it has potential as a therapeutic target in the treatment of RA. Studies show that CD3+TCRvβ11+NK (natural killer) T cells isolated from a localMycobacterium tuberculosisinfection site produce IL21, which in turn assists B cells to produce and release IgG (immunoglobulin) and IgA, to help fight the infection.

序列

MQDRHMIRMR QLIDIVDQLK NYVNDLVPEF LPAPEDVETN CEWSAFSCFQ KAQLKSANTG NNERIINVSI KKLKRKPPST NAGRRQKHRL TCPSCDSYEK KPPKEFLERF KSLLQKMIHQ HLSSRTHGSE DS

外形

Lyophilized from a sterile (0.2 micron) filtered aqueous solution containing 10 mM sodium phosphate, pH 7.5

重悬

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8℃ for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20℃ to -80℃.

基本信息

NACRES NA.32

半岛bd体育手机客户端 性质

生物来源 human
重组 expressed inE. coli
测定 ≥98% (HPLC)
≥98% (SDS-PAGE)
形式 lyophilized
效能 ≤0.5 ng/mL ED50
分子量 15.4 kDa
包装 pkg of 10 μg
technique(s) cell culture | mammalian: suitable
杂质 <0.1 EU/μg endotoxin, tested
颜色 white to off-white
UniProt登记号 Q9HBE4
运输 wet ice
储存温度 ?20℃
Gene Information human ... IL21(59067)

安全信息

储存分类代码 13 - Non Combustible Solids
WGK WGK 3
闪点(F) Not applicable
闪点(C) Not applicable

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