| 生物活性 | 1.Measured by its binding ability in a functional ELISA. Immobilized SARS-CoV-2 (2019-nCoV) Spike S1-His at 2 μg/mL (100 μL/well) can bind human ACE2 (hFc tag) , the EC50 of ACE2 is 5-35 ng/mL.
2.Captured ACE2（TMPY-00655 on proA Chip can bind SARS-CoV-2 B.1.1.529 (Omicron) Spike S1 Protein with an affinity constant of 11.78 nM as determined in a SPR assay(Routinely tested).
3.Captured ACE2（TMPY-00655 on anti-Human IgG Fc via CM5 Chip can bind SARS-CoV-2 B.1.1.529 (Omicron) Spike RBD Protein with an affinity constant of 5.667 nM as determined in a SPR assay(Routinely tested). |
| 产品描述 | ACE2/ACEH Protein, Human, Recombinant (hFc) is expressed in HEK293 mammalian cells with hFc tag. The predicted molecular weight is 110.3 kDa and the accession number is Q9BYF1-1. |
| 种属 | Human |
| 表达系统 | HEK293 Cells |
| 标签 | C-hFc |
| 蛋白编号 | Q9BYF1-1 |
| 别名 | angiotensin I converting enzyme 2,ACEH |
| 蛋白构建 | A DNA sequence encoding the extracellular domain (Met 1-Ser 740) of human ACE2 precursor (NP_068576.1) was expressed with the fused Fc region of human IgG1 at the C-terminus. Predicted N terminal: Gln 18 |
| 蛋白纯度 | > 95 % as determined by SDS-PAGE |
| 分子量 | 110.3 kDa (predicted); 145-150 kDa (reducing condition, due to glycosylation) |
| 内毒素 | < 1.0 EU/μg of the protein as determined by the LAL method. |
| 缓冲液 | Lyophilized from a solution filtered through a 0.22 μm filter, containing 100 mM Glycine, 10 mM NaCl, 50 mM Tris, pH 7.5. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization. |
| 复溶方法 | A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information. |
| 存储 | It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
| 运输方式 | In general, Lyophilized powders are shipping with blue ice. |
| 研究背景 | Angiotensin-converting enzyme 2 (ACE2), a first homolog of ACE, regulates the renin angiotensin system (RAS) by counterbalancing ACE activity. Accumulating evidence in recent years has demonstrated a physiological and pathological role of ACE2 in the cardiovascular, renal and respiratory systems. ACE2 also has an important role in blood pressure control. This enzyme, an homolog of ACE, hydrolyzes angiotensin (Ang) I to produce Ang-(1-9), which is subsequently converted into Ang-(1-7) by a neutral endopeptidase and ACE. ACE2 releases Ang-(1-7) more efficiently than its catalysis of Ang-(1-9) by cleavage of Pro(7)-Phe(8) bound in Ang II. Thus, the major biologically active product of ACE2 is Ang-(1-7), which is considered to be a beneficial peptide of the RAS cascade in the cardiovascular system. A physiological role for ACE2 has been implicated in hypertension, cardiac function, heart function and diabetes, and as a receptor of the severe acute respiratory syndrome coronavirus. In the acute respiratory distress syndrome (ARDS), ACE, AngII, and AT1R promote the disease pathogenesis, whereas ACE2 and the AT2R protect from ARDS. Importantly, ACE2 has been identified as a key SARS-coronavirus receptor and plays a protective role in severe acute respiratory syndrome (SARS) pathogenesis. Furthermore, the recent explosion of research into the ACE2 homolog, collectrin, has revealed a new physiological function of ACE2 as an amino acid transporter, which explains the pathogenic role of gene mutations in Hartnup disorder. This review summarizes and discusses the recently unveiled roles for ACE2 in disease pathogenesis. |
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