- ￥5800 - 19200
- 上海经科
- 中国
- JK7542
- 2026年05月21日
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![重组蛋白 B7-H6/NCR3LG1 [Biotin] 人 His Avi Biotin](https://img1.dxycdn.com/p/s14/2026/0615/850/4648594281475236602.png!wh200)
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- 详细信息
- 文献和实验
- 技术资料
- 保存条件：
-20℃
- 保质期：
3 months at -20°C
- 英文名：
SIRP alpha V3[Biotin], His & Avi, Human
- 库存：
现货
- 供应商：
上海经科化学科技有限公司
- 规格：
100μg/500μg
| 规格： | 100μg | 产品价格： | ￥5800.0 |
|---|---|---|---|
| 规格： | 500μg | 产品价格： | ￥19200.0 |
| Species | Human | ||||||
| Protein Construction |
|
||||||
| Conjugate | Biotin | ||||||
| Purity | > 95% as determined by BisTris PAGE | ||||||
| Endotoxin Level | Less than 1EU per μg by the LAL method. | ||||||
| Biological Activity | Measured by its binding ability in a functional ELISA. Test result was comparable to standard batch. | ||||||
| Expression System | HEK293 | ||||||
| Theoretical Molecular Weight | 39.8 kDa | ||||||
| Apparent Molecular Weight | Due to glycosylation, the protein migrates to 55-65 kDa based on Bis-Tris PAGE result. | ||||||
| Formulation | Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). | ||||||
| Reconstitution | Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water. | ||||||
| Storage & Stability | Upon receiving, the product remains stable for 6 months at -20℃ or below. Upon reconstitution, the product should be stable for 3 months at -80℃. Avoid repeated freeze-thaw cycles. |
| Target Background | Signal regulatory protein α (SIRPα) is a regulatory membrane glycoprotein from SIRP family expressed mainly by myeloid cells and also by stem cells or neurons.SIRPα acts as inhibitory receptor and interacts with a broadly expressed transmembrane protein CD47 also called the 'don´t eat me' signal.Cancer cells highly expressed CD47 that activate SIRP α and inhibit macrophage-mediated destruction. |
| Synonyms | CD172a; BIT; MFR; MYD1; MYD-1; P84; PTPNS1; SHPS1; SHPS-1; SIRP alpha; SIRPA |
产品特点：
1. 【人源天然序列】采用人源 SIRPα V3 天然氨基酸序列，无突变，与体内天然蛋白结构完全一致，可特异性结合 CD47 配体2. 【高活性高特异性】可高效结合 CD47 配体，ED₅₀ < 100 ng/mL（CD47 结合实验），可被 SIRPα 特异性抗体识别，适用于抗体筛选、免疫机制研究3. 【高纯度低内毒素】SDS-PAGE 纯度 > 95%，内毒素 < 0.2 EU/μg（LAL 法），适配免疫细胞培养、体内免疫实验等敏感场景需求4. 【多标签易纯化检测】哺乳动物细胞表达，N 端带 Avi 标签、C 端带 His 标签，可通过 Ni-NTA 亲和层析快速纯化，也可通过 Avi/His 标签抗体、生物素亲和素系统进行特异性检测5. 【稳定易保存】蛋白储存液配方优化，未开封 - 80℃可稳定保存 12 个月，-20℃可存 6 个月，避免反复冻融可长期保持蛋白活性6. 【多场景适配】可用于 SIRPα 蛋白结构与功能研究、免疫调控与免疫耐受机制研究、肿瘤免疫治疗研究、细胞培养添加剂、药物筛选、抗体研发等
SIRPα, 信号调节蛋白 α, 人源，人，重组蛋白，重组，高活性，高纯度，低内毒素，生物素标记，His 标签，Avi 标签，细胞培养，免疫细胞，科研实验，哺乳动物细胞表达，Human,SIRP alpha,Recombinant protein,Biotin conjugated,His-tagged,Avi-tagged,High activity,High purity,Low endotoxin,Cell culture,Immune cell,Mammalian expression
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