Recombinant Human Activin A Protein

货号: rp142493
有货
级别和纯度: 无动物源 ? 无动物源(Animal Free)—— 不含动物源成分生产,降低污染风险。适用于避免动物源材料的生物制造和培养。 无载体 ? 无载体(Carrier Free)—— 不含添加的载体蛋白/稳定剂。当载体(如 BSA)会干扰偶联或敏感检测时使用。 生物活性 ? 生物活性级(Bioactive)—— 经验证在功能检测中保持生物活性。当分子须具有功能活性而不仅是纯度时使用。 ActiBioPure™ ? ActiBioPure™ —— 阿拉丁面向生物活性和重组产品的优质系列。当同时需要高纯度和保持生物活性时使用。 无叠氮钠 ? 无叠氮(Azide Free)—— 不含叠氮化钠防腐剂。适用于叠氮有毒或有抑制作用的偶联、细胞工作或检测。 高性能 ? 高性能级 —— 纯度和性能特性经过优化。适用于普通等级无法满足的灵敏分析。 His标签 ? 组氨酸(His) 标签级 —— 带有 His 标签的重组蛋白,供亲和纯化/检测。用于纯化、固定或检测带标签蛋白。 ≥95%(SDS-PAGE)
Accession #
P08476
蛋白标签
C-His
表达系统
HEK293
内毒素水平
<0.1 EU/μg
生物活性
Measured by its ability to induce hemoglobin expression in K562 human chronic myelogenous leukemia cells. The ED50 for this effect is 2.87 ng/mL.
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规格
库存
价格
数量
10μg
rp142493-10μg
现货 Stock Image
¥999.90
50μg
rp142493-50μg
现货 Stock Image
¥2,439.90
100μg
rp142493-100μg
现货 Stock Image
¥3,899.90
1mg
rp142493-1mg
期货 Stock Image
¥21,999.90
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为什么选择此级别

ActiBioPure™,His标签,无动物源,无叠氮钠,无载体,生物活性,高性能 级 提供 ≥95%(SDS-PAGE) 纯度,适用于对基线干扰要求严格的色谱和分析工作流程。

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储存与运输

-20°C储存,避免反复冻融。超低温运输 。请查阅批次 COA 获取详细规格。

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质量文档

SDS、COA、产品数据表及规格说明书均可下载。可通过批号查询获取批次 COA。

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文献证明

在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。

概述


Purity
≥95% (SDS-PAGE)
Endotoxin level
<0.1 EU/μg
Function
Activin and Inhibin are members of the TGF-beta superfamily of cytokines and are involved in a wide range of biological processes including tissue morphogenesis and repair, fibrosis, inflammation, neural development, hematopoiesis, reproductive system function, and carcinogenesis. Activin and Inhibin are produced as precursor proteins. Their amino terminal propeptides are proteolytically cleaved and facilitate formation of disulfide-linked dimers of the bioactive proteins. Activins are nonglycosylated homodimers or heterodimers of various beta subunits ( beta A, beta B, beta C, and beta E in mammals), while Inhibins are heterodimers of a unique alpha subunit and one of the beta subunits. Activin A is a widely expressed homodimer of two beta A chains. The beta A subunit can also heterodimerize with a beta B or beta C subunit to form Activin AB and Activin AC, respectively. The 14 kDa mature human beta A chain shares 100% amino acid sequence identity with bovine, feline, mouse, porcine, and rat beta A. Activin A exerts its biological activities by binding to the type 2 serine/threonine kinase Activin RIIA which then noncovalently associates with the type 1 serine/threonine kinase Activin RIB/ALK-4. Signaling through this receptor complex leads to Smad activation and regulation of activin-responsive gene transcription. The bioactivity of Activin A is regulated by a variety of mechanisms. BAMBI, Betaglycan, and Cripto are cell‑associated molecules that function as decoy receptors or limit the ability of Activin A to induce receptor complex assembly. The intracellular formation of Activin A can be prevented by the incorporation of the beta A subunit into Activin AC or Inhibin A. And the bioavailability of Activin A is restricted by its incorporation into inactive complexes with alpha 2-Macroglobulin, Follistatin, and FLRG. Activin A is involved in the differentiation of various cell and tissue types. The induction of definitive endoderm by Activin A is required in differentiation protocols of induced pluripotent stem cells (iPSCs). In vitro models of human gametogenesis use prolonged Activin A supplementation to human embryonic stem cells for differentiation into human primordial germ cell-like cells. Activin A can also be used to maintain cells in vitro, as is the case for iPSC-derived nephron cells that can then be used in disease modeling, drug screening and in regenerative medicine. Activin A is an important factor for tumor cells to evade the immune system as Activin A can act on surrounding immune cells to decrease their antitumor activity. Activin A also promotes migration and growth of tumors, making it a target for cancer therapies. Specifically, research has shown that interfering with Activin A activity can assist in overcoming CD8 T-cell exclusion and immunotherapy resistance. In bone marrow-derived stem cell transplants for treatment of diabetes, Activin A enhances migration and homing of stem cells towards pancreatic lineage.

规格

产品名称
Recombinant Human Activin A Protein
别名
重组激活素A蛋白
英文别名
Activin A | activin AB alpha polypeptide | Activin beta-A chain | erythroid differentiation factor | Erythroid differentiation protein | follicle-stimulating hormone-releasing protein | FSH-releasing protein | inhibin beta A chain | inhibin beta A subunit
规格或纯度
无动物源,无载体,生物活性,ActiBioPure™,无叠氮钠,高性能,His标签,≥95%(SDS-PAGE)
生物活性
Measured by its ability to induce hemoglobin expression in K562 human chronic myelogenous leukemia cells. The ED50 for this effect is 2.87 ng/mL.
表达系统
HEK293
种属
人(Human)
氨基酸
21-426 aa
序列
SPTPGSEGHSAAPDCPSCALAALPKDVPNSQPEMVEAVKKHILNMLHLKKRPDVTQPVPKAALLNAIRKLHVGKVGENGYVEIEDDIGRRAEMNELMEQTSEIITFAESGTARKTLHFEISKEGSDLSVVERAEVWLFLKVPKANRTRTKVTIRLFQQQKHPQGSLDTGEEAEEVGLKGERSELLLSEKVVDARKSTWHVFPVSSSIQRLLDQGKSSLDVRIACEQCQESGASLVLLGKKKKKEEEGEGKKKGGGEGGAGADEEKEQSHRPFLMLQARQSEDHPHRRRRRGLECDGKVNICCKKQFFVSFKDIGWNDWIIAPSGYHANYCEGECPSHIAGTSGSSLSFHSTVINHYRMRGHSPFANLKSCCVPTKLRPMSMLYYDDGQNIIKKDIQNMIVEECGCSHHHHHH
纯度
≥95% (SDS-PAGE)
蛋白标签
C-His
无载体
Yes
无动物源
Yes
偶联
Unconjugated
来源
重组表达
预测分子量
45 kDa
SDS-PAGE
13 - 16 kDa (mature) and 39 - 46 kDa (precursor) , under reducing conditions.
分子类型
蛋白质
产品线
生物产品
储存与运输
物理形态
冻干(Lyophilized)
储存缓冲液
Lyophilized from 10mM PBS, 5% Trehalose, 5% Mannitol, pH 7.4
复溶
Reconstitute in sterile water to a concentration of 0.1-0.5 mg/ml.
储存条件
-20°C储存,避免反复冻融
运输条件
超低温运输
稳定性与储存
在 -20~-80℃ 下可保存 1 年以上。收货后建议分装。避免冷冻/解冻循环。
图片

Recombinant Human Activin A Protein (rp142493) - Protein Bioactivity
Measured by its ability to induce hemoglobin expression in K562 human chronic myelogenous leukemia cells. The ED50 for this effect is 2.87 ng/mL.

Recombinant Human Activin A Protein (rp142493) - SDS-PAGE
3 μg/lane of Recombinant Human Activin A Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing the band at 13 - 16 kDa (mature) and 39 - 46 kDa (precursor) under reducing condition. Under non-reducing conditions, the migration rate of the mature protein is 27 kDa, and the migration rate of the precursor protein is 39 - 46 kDa, and there may also be a migration rate of 55 - 65 kDa (indicating the combination of the precursor and mature forms). These changes in migration rate are mainly due to the effects of glycosylation and interchain disulfide bonds.

技术文档

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高级数据

质检证书(CoA,COO,BSE/TSE 和分析图谱)
C of A & Other Certificates(BSE/TSE, COO):
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找到3个结果

批号(Lot Number) 证书类型 货号
ZJ24F1113619 分析证书 rp142493
ZJ24F1113620 分析证书 rp142493
ZJ24F1113621 分析证书 rp142493
技术文档和文章
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常见问题

本产品的纯度是多少?如何测定?
本产品的纯度为 ≥95%,采用SDS-PAGE测定。批次的具体数值以分析证书(COA)为准。
什么是「无动物源」?
「无动物源」表示该物料经过加工和检测,适用于特种工业加工。规格侧重于影响该应用性能的杂质——例如,电子应用的金属含量、电池应用的粒度、光学应用的折射率,或对水分敏感工艺的水分含量。
什么是「无载体」?
「无载体」表示该物料经过加工和检测,适用于特种工业加工。规格侧重于影响该应用性能的杂质——例如,电子应用的金属含量、电池应用的粒度、光学应用的折射率,或对水分敏感工艺的水分含量。
本产品应如何储存?
请于?20 °C条件下保存。避免反复冻融。建议按单次用量分装保存。
本产品如何运输?
本产品采用保温箱配冰袋运输。收货后请立即拆包,并按上述储存条件保存。
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