产品说明书
FAQ
COA
已发表文献
B7-H7, also known as HHLA2 (HERV-H LTR-associating 2), is a member of the B7 family of immune regulatory proteins. Mature human B7-H7 consists of a 322 amino acid (aa) extracellular domain (ECD) with three immunoglobulin-like domains, a 21 aa transmembrane segment, and a 49 aa cytoplasmic domain. B7H7 is constitutively expressed on monocytes and is up-regulated by LPS and IFN-gamma stimulation. It is expressed on LPS/IFN-gamma treated B cells but not on resting B cells. B7-H7 binds to cell surface determinants on resting and mature T cells, B cells, and monocytes as well as on immature and mature dendritic cells. Soluble B7-H7 inhibits the proliferation of activated CD4+ and CD8+ T cells and their production of IFN-gamma, TNF-alpha, IL-5, IL-10, IL-13, IL-17A, and IL-22.
产品性质
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别名（Synonyms） |
B7H7; B7-H7; HHLA2; B7 Homolog 7 |
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Uniprot No. |
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表达区间及表达系统（Source） |
Recombinant Human B7-H7/HHLA2 Protein is expressed from HEK293 Cells with His tag at the C-terminal. It contains Ile23-Asn344. |
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分子量(Molecular Weight) |
The protein has a predicted MW of 38.1 kDa. Due to glycosylation, the protein migrates to 50-70 kDa based on Tris-Bis PAGE result. |
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外观(Physical Appearance） |
Sterile Filtered White lyophilized (freeze-dried) powder. |
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纯度（Purity） |
> 95% as determined by SDS-PAGE and HPLC |
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活性（Activity） |
ELISA Data: Immobilized Human B7-H7, His Tag at 2μg/ml (100μl/well) on the plate. Dose response curve for Human CD28H, hFc Tag with the EC50 of 81ng/ml determined by ELISA. |
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内毒素（Endotoxin） |
< 1.0 EU per 1μg of the protein by the LAL method. |
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制剂（Formulation） |
Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 5% trehalose is added as protectant before lyophilization. |
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复溶（Reconstitution） |
Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/mL is recommended (usually we use 1 mg/mL solution for lyophilization). Dissolve the lyophilized protein in distilled water. |
运输与保存方法
冰袋运输。-20℃至-80℃保存，一年有效期。
复溶后，-20 至 -80°C，在未开封状态下保存 3-6 个月。复溶后，2-8°C 保存 2-7 天。
建议第一次使用时分装冻存，避免反复冻融。
注意事项
1. 避免反复冻融。
2. 为了您的安全和健康，请穿实验服并戴一次性手套操作。
3. 本产品仅作科研用途！
产品数据
Tris-Bis PAGE
HB220624
