细胞生物学试剂

IL-21细胞因子

基本信息
产品名称:
IL-21细胞因子
英文名称:
国产/进口:
国产
产地/品牌:
厦门/逸漠IMMOCELL
型号:
10ug/瓶
参考报价:
1200
总点击数:
146
更新日期:
2024-02-20
产品类别:

性能参数
▍Backgound

IL-21 (Interleukin-21) is a potent cytokine regulating many cell types of the immune system. IL-21 is produced by activated T follicular helper cells (Tfh), Th17 cells, and NKT cells (2-6). Tfh-derived IL-21 plays an important role in the development of humoral immunity through its autocrine effects on the Tfh cell and paracrine effects on immunoglobulin affinity maturation, plasma cell differentiation, and B cell memory responses. IL-21 protein regulates several aspects of T cell function. It co-stimulates the activation, proliferation, and survival of CD8+ T cells and NKT cells and promotes Th17 cell polarization. IL-21 blocks the generation of regulatory T cells and their suppressive effects on CD4+ T cells. In addition to its role in T cell biology, IL-21 also plays a critical role in B cell activation, proliferation, differentiation, and apoptosis. It is also required for the migration of dendritic cells to draining lymph nodes. And IL-21 suppresses cutaneous hypersensitivity reactions by limiting allergen-specific IgE production and mast cell degranulation. In the autoimmune disease Systemic lupus erythematosus (SLE), a link between IL-21 and SLE disease susceptibility and progression was recently reported.

▍Source

Recombinant Human IL-21 is expressed from Escherichia coli. It contains AA Gln 30 - Ser 162. Predicted molecular mass 18.1 kDa. This protein carries a polyhistidine tag at the N-terminus.

Recombinant Human IL-21 is expressed from Escherichia coli

▍Endotoxin

Less than 1.0 EU per μg by the LAL method.

▍AA Sequence

QGQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLT

CPSCDSYEKKPPKEFLERFKSLLQKMIHQHLSSRTHGSEDS

▍Purity

Purity >90% as determined by SDS-PAGE.

▍Formulation:

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization. Contact us for customized product form or formulation.

▍Reconstitution

Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at < -20°C. Further dilutions should be made in appropriate buffered solutions.

▍Storage

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:

-20°C to -70°C for 12 months in lyophilized state;

-70°C for 3 months under sterile conditions after reconstitution.

▍SDS-PAGE

Human IL-21, His Tag on SDS-PAGE under reducing (R) condition

Human IL-21, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 90%.
公司简介
厦门逸漠生物科技有限公司(Xiamen Immocell Biotechnology Co.,Ltd.)坐落于厦门国家留学创业园(翔安)产业园,是一家专注于细胞生物学领域新产品、新技术开发的高新技术企业。
公司拥有一支具有深厚造诣和丰富经验的高端技术人才,建设了高规格的研发实验室与生产车间,建立了规范的研发、生产、销售、客服管理体系。
公司与国内外多家医院、高等院校、科研院所、生物医药公司建立了良好的合作关系,赢得了良好的市场声誉和广泛的客户认可,将努力成为生命科学界可靠的合作伙伴和坚强的技术后盾。
企业文化我们的使命:
深耕细胞技术,共筑人类健康从细胞技术着手,深入地、多维度地进行探索与积累,发展新产品与、新技术服务于生命科技探索以及人类疾病诊疗、人类健康发展事业。
我们的愿景:
成为生命科学领域被认可与喜欢的公司我们旨在构建细胞资源与应用中心。我们追求为客户提供靠谱的产品与技术,让他们能够省心省力的专注于自己的科研工作。我们的愿景是让客户获得成功的同时。成为他们的心中认可与喜欢的公司。
我们的经营理念:
1.精益求精、开拓创新把成熟的产品做到非凡,把创新的产品做到超乎想象。
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详细地址:
厦门火炬高新区(翔安)产业区翔星路88号台湾科技企业育成中心E205L室
qq:
443836272
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13358398823

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