- 中文名稱
【干冰】SARS-CoV-2 (COVID-19) RBD 重組蛋白
- 英文名字
- 【干冰】SARS-CoV-2 (COVID-19) RBD Recombinant Protein
- 供應商
- ProSci
- 產品貨號
- PSI-10-078
- 產品報價
- ￥詢價/0.1mg
- 產品說明書
- 點擊查看
- 購買方式
- 銀行轉賬、電匯、支票、現金，在線支付寶及網銀支付，或直接與我們電話聯系400-6800-868
- 產品新聞
- 背景資料
- Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease 2019 (COVID-19), is an enveloped, single-stranded, positive-sense RNA virus that belongs to the Coronaviridae family 1. The SARS-CoV-2 genome, which shares 79.6% identity with SARS-CoV, encodes four essential structural proteins: the spike (S), envelope (E), membrane (M), and nucleocapsid protein (N) 2. The S protein is a transmembrane, homotrimeric, class I fusion glycoprotein that mediates viral attachment, fusion, and entry into host cells 3. Each ~180 kDa monomer contains two functional subunits, S1 (~700 a.a) and S2 (~600 a.a), that mediate viral attachment and membrane fusion, respectively. S1 contains two major domains, the N-terminal (NTD) and C-terminal domains (CTD). The CTD contains the receptor-binding domain (RBD), which binds to the angiotensin-converting enzyme 2 (ACE2) receptor on host cells 3-5. Although both SARS-CoV and SARS-CoV-2 bind the ACE2 receptor, the RBDs only share ~73% amino acid identity, and the SARS-CoV-2 RBD binds with a higher affinity compared to SARS-CoV 3, 6. The RBD is dynamic and undergoes hinge-like conformational changes, referred to as the “down” or “up” conformations, which hide or expose the receptor-binding motifs, respectively 7. Following receptor binding, S1 destabilizes, and TMPRSS2 cleaves S2, which undergoes a pre- to post-fusion conformation transition, allowing for membrane fusion 8, 9.
Polyclonal RBD-specific antibodies can block ACE2 binding 10, 11, and anti-RBD neutralizing antibodies are present in the sera of convalescent COVID19 patients 12, identifying the RBD as an attractive candidate for vaccines and therapeutics. In addition, the RBD is poorly conserved, making it a promising antigen for diagnostic tests 13 14. Serologic tests for the RBD are highly sensitive and specific for detecting SARS-CoV-2 antibodies in COVID19 patients 13 15. Furthermore, the levels of anti-RBD antibodies correlated with SARS-CoV-2 neutralizing antibodies, suggesting the RBD could be used to predict an individual's risk of disease 13.
- 序列
- RVQPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTFK
CYGVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWN
SNNLDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGSTPCNGVEGFNCYFPLQSYGF
QPTNGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNFNFNGLTGTGVLTESN
KKFLPFQQFGRDIADTTDAVRDPQTLEILDITPCS
- 來源宿主
- HEK293 細胞
- 溶解建議
- 艾美捷溫馨提示:開蓋前,請先離心。廠家建議您，按照該貨號產品的說明書中要求的方式進行溶解和使用。
- 保存建議
- This recombinant protein may be stored as received at 2-8˚C for up to one month. For longer term storage, aseptically aliquot in working volumes without diluting and store at -80˚C. Avoid Repeated Freeze Thaw Cycles.
- 其他
- ProSci Incorporated于1998年成立于美國加州圣地亞哥市,從事抗體等科研試劑的研發、生產和銷售。產品涵蓋了細胞凋亡、信號轉導、免疫、腫瘤、細胞生物、神經生物、傳染病等領域。ProSci擁有超過30000種單克隆抗體和多克隆抗體。ProSci的抗體大都經免疫親和層析純化,具有高純度、高親和力、特異性強等特點,所有的ProSci抗體都經過了嚴格的驗證測試和質量控制,已保證高質量的產品。此外,ProSci還提供標記二抗,重組蛋白,細胞和組織裂解液,細胞涂片,組織切片,多肽等產品與抗體配套使用。
- 注意
-
該頁面的中文產品信息的翻譯，僅供參考。準確的產品信息請以廠家的英文說明書為準。下單前，請瀏覽說明書確認。
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