1. 重组蛋白
  2. Cytokines and Growth Factors Receptor Proteins Enzymes & Regulators
  3. TGF-beta Superfamily Receptor Serine/Threonine Kinases Serine/Threonine Kinase Proteins
  4. Activin/Inhibins Receptor
  5. Activin A Receptor Type 2A (ACTR-IIA)
  6. ACVR2A/Activin RIIA 蛋白, Human (HEK293, Fc)

ACVR2A/Activin RIIA 蛋白, Human (HEK293, Fc)

目录号: HY-P75537
产品使用指南

ACVR2A,也称为激活素 RIIA,是一种激活素 II 型受体。在配体结合时,ACVR2A 可以形成由两种 II 型和两种I 型跨膜丝氨酸/苏氨酸激酶组成的受体复合物。ACVR2A 是 Activin A、Activin B 和Inhibin A 的受体。ACVR2A/Activin RIIA 蛋白, Human (HEK293, Fc) 在 HEK293 细胞中产生,由 134 个氨基酸(M1-P134) 组成,在 C 末端带有 Fc 标签。

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描述

ACVR2A, also known as Activin RIIA, is an activin type II receptor. On ligand binding, ACVR2A can forms a receptor complex consisting of two type II and two type I transmembrane serine/threonine kinases. ACVR2A is a receptor for Activin A, Activin B and Inhibin A[1][2]. ACVR2A/Activin RIIA Protein, Human (HEK293, Fc) is produced in HEK293 cells with a C-Terminal Fc-tag. It consists of 134 amino acids (M1-P134).

研究背景

ACVR2A is a type II member of the TGF-β family of receptor Serine/Threonine kinases. ACVR2A is a receptor for Activin A, Activin B and Inhibin A[1][2].
The sequence of amino acids in ACVR2A proteins from different species is very stable, which leads to the conclusion that in the process of evolution, ACVR2A has been only slightly altered, and that both in humans and in animals, its function is similar.
Signaling by activins and BMPs is highly promiscuous, since apart from signaling through ALK4/7, the activin type II receptors (ACVR2A and 2B) can interact also with several type I BMP receptors (ALK1/2/3/6), which can also form complexes with the type II BMP receptor, BMPRII. Type II receptors phosphorylate and activate type I receptors which autophosphorylate, then bind and activate SMAD transcriptional regulators. ACVR2A can form complexes with different type I receptors that signal either to Smad2/3 (ALK4) or to Smad1/5/8 (ALK2, ALK3, ALK6). The different type I receptors compete for binding to ACVR2A and that this competition provides a mechanism that balances signaling between Activin A-mediated, ALK4-dependent Smad2/3 signaling, and BMP-mediated ALK2 or ALK3-dependent signaling to Smad1/5/8. In myeloma cells, BMP-6- and BMP-9-induced activation of SMAD1/5/8 through ACVR2A/ACVR2B/ALK2 is inhibited by activin A treatment[1][3].

体外研究
(In Vitro)

Recombinant human ACVR2A (5 μg/mL) inhibits the effects of BMP-9 on INA-6 and IH-1 cells[1].
Recombinant human ACVR2A (100 μg/mL; 96 hours) blocks the β-cell-proliferative effect of adenoviruses containing mouse Pdx-1 (AdCMV-mPdx-1) treatment[4].

生物活性

Measured by its ability to neutralize Activin-mediated inhibition on MPC11 cell proliferation and the ED50 is typically 20-80 ng/mL in the presence of 10 ng/mL Activin A.

种属

Human

表达系统

HEK293

标签

C-hFc

蛋白编号

P27037 (M1-P134)

基因 ID

92  [NCBI]

中文名
重组人激活素受体 IIA (HEK293, Fc)
同用名
ACVR-2A; Activin receptor type 2A; ACTR-IIA; ACVR2
分子量

60-65 kDa

纯度

Greater than 95% as determined by reducing SDS-PAGE

性状

Lyophilized powder.

组分

Lyophilized a 0.2 μm filtered solution of PBS, pH 7.4.

内毒素含量

<1 EU/μg, determined by LAL method.

复溶方法

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

保存条件 & 期限

Stored at -20°C. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer. It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

运输条件

Room temperature in continental US; may vary elsewhere.

文件资料
参考文献
  • 复溶计算器

  • 重组蛋白稀释计算器

  • 比活力计算器

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start) × 体积 (start) = 浓度 (final) × 体积 (final)
× = ×
C1   V1   C2   V2

The specific active calculator equation

Specific Active (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Active (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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产品名称:
ACVR2A/Activin RIIA Protein, Human (HEK293, Fc)
目录号:
HY-P75537
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