IL-21 Protein (Transcript Variant 1)
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北京 101111
Quick Overview for IL-21 Protein (Transcript Variant 1) (ABIN2723673)
抗原
See all IL-21 (IL21) 蛋白蛋白类型
生物活性
宿主
资源
应用范围
纯度
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产品特性
- Transcript Variant 1
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特异性
- Optimal preservation of protein structure, post-translational modifications and functions.
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产品特性
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- Recombinant human Interleukin-21 / IL21 (transcript variant 1) protein expressed in E. coli.
- Produced with end-sequenced ORF clone
- Tested for bioactivity.
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内毒素水平
- Endotoxin level is <0.1 ng/μg of protein (<1EU/μg).
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Biological Activity Comment
- Assay #1:Determined by its ability to proliferate activated B cells. Assay #2:Determined by its ability to induce human CD40L-activated naïve B cells to undergo Ig isotype switching to IgG, using an IL-21 concentration of 50 ng/ml. Maximal activity was achieved after approximately five cell divisions. Avery, D.T. et. al. (2008) J. Immunol. 181, 1767-1779.
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Interleukin 21 (IL21) (AA 32-162) protein
IL21 宿主: 人 宿主: 大肠杆菌（E. Coli） Recombinant > 95 % as determined by Tris-Bis PAGE
Interleukin 21 (IL21) (AA 30-162) protein (Fc Tag)IL21 宿主: 人 宿主: HEK-293 Cells Recombinant The purity of the protein is greater than 95 % as determined by SDS-PAGE and Coomassie blue staining. ELISA
Interleukin 21 (IL21) (AA 30-162) (Active) proteinIL21 宿主: 人 宿主: HEK-293 Cells Recombinant >98 % as determined by SDS-PAGE. Active
Interleukin 21 (IL21) (AA 32-162) protein (His-Avi Tag,Biotin)IL21 宿主: 人 宿主: 大肠杆菌（E. Coli） Recombinant > 95 % as determined by Tris-Bis PAGE
Interleukin 21 (IL21) (AA 25-155) protein (His-IF2DI Tag)IL21 宿主: 人 宿主: 大肠杆菌（E. Coli） Recombinant Greater than 90 % as determined by SDS-PAGE. WB, ELISA
Interleukin 21 (IL21) (AA 18-146) protein (His-IF2DI Tag)IL21 宿主: 大鼠 宿主: 大肠杆菌（E. Coli） Recombinant Greater than 90 % as determined by SDS-PAGE. WB, ELISA
Interleukin 21 (IL21) protein (His tag)IL21 宿主: 小鼠 宿主: 大肠杆菌（E. Coli） Recombinant > 95 % as determined by SDS-PAGE
Interleukin 21 (IL21) (AA 1-162) protein (GST tag)IL21 宿主: 人 宿主: 小麦胚 Recombinant WB, ELISA, AP, AA
Interleukin 21 (IL21) (AA 18-146) protein (His-Avi Tag,Biotin)IL21 宿主: 小鼠 宿主: 大肠杆菌（E. Coli） Recombinant > 95 % as determined by Tris-Bis PAGE
Interleukin 21 (IL21) (AA 30-162) protein (His tag)IL21 宿主: 人 宿主: HEK-293 Cells Recombinant The purity of the protein is greater than 95 % as determined by SDS-PAGE and Coomassie blue staining.
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应用备注
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Recombinant human proteins can be used for:
Native antigens for optimized antibody production
Positive controls in ELISA and other antibody assays
Protein-protein interaction
In vitro biochemical assays and cell-based functional assays -
限制
- 仅限研究用
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缓冲液
- Lyophilized from a 0.2 μM filtered solution of 20 mM phosphate buffer,100 mM NaCl, pH 7.2
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注意事项
- Resuspend the protein in the desired concentration in proper buffer
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储存条件
- -80 °C
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储存方法
- Store at -80°C. Thaw on ice, aliquot to individual single-use tubes, and then re-freeze immediately. Only 2-3 freeze thaw cycles are recommended.
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- IL-21 (IL21) (Interleukin 21 (IL21))
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别名
- Interleukin-21,il21
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背景
- This gene encodes a member of the common-gamma chain family of cytokines with immunoregulatory activity. The encoded protein plays a role in both the innate and adaptive immune responses by inducing the differentiation, proliferation and activity of multiple target cells including macrophages, natural killer cells, B cells and cytotoxic T cells. Dysregulation of this gene plays a role in multiple immune-mediated diseases including lupus, psoriasis and chronic inflammatory diseases. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene.
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分子量
- 15.4 kDa
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NCBI登录号
- NP_068575
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途径
- JAK/STAT Signaling, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Production of Molecular Mediator of Immune Response
抗原
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