Anti-MERS-CoV Spike Protein S1 polyclonal antibody (CABT-B1953)

Rabbit Anti-MERS-CoV Spike Protein S1 (Center region ) polyclonal antibody for WB

Specifications


Host Species
Rabbit
Antibody Isotype
IgG
Species Reactivity
MERS-CoV
Immunogen
A synthetic peptide corresponding to the center region of the S1 subunit of MERS-CoV (NCoV / Novel coronavirus) spike glycoprotein (S protein).
Conjugate
Unconjugated

Applications


Application Notes
Recommended dilution:
WB: 1:500-1:2000
*Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own experiment using appropriate negative and positive controls.

Target


Alternative Names
Middle East respiratory symptom coronavirus Spike Protein S1 subunit

Citations


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References


A novel neutralizing monoclonal antibody targeting the N-terminal domain of the MERS-CoV spike protein

EMERGING MICROBES & INFECTIONS

Authors: Chen, Yingzhu; Lu, Shuai; Jia, Hao; Deng, Yao; Zhou, Jianfang; Huang, Baoying; Yu, Yueyang; Lan, Jiaming; Wang, Wenling; Lou, Yongliang; Qin, Kun; Tan, Wenjie

Middle East respiratory syndrome coronavirus (MERS-CoV) has caused fatal infections, some through hospital-acquired transmission, in affected regions since its emergence in 2012. Although the virus is not pandemic among humans, it poses a great threat to public health due to its zoonotic origin. Thus, both preventative and therapeutic countermeasures are urgently needed. In this study, we discovered a panel of neutralizing monoclonal antibodies (mAbs) against MERS-CoV, which mapped to a wide range of regions on the spike (S) protein of the virus. In addition to mAbs with neutralizing epitopes located on the receptor-binding domain, one mAb, 5F9, which binds to the N-terminal domain (NTD) of the MERS-CoV S1 subunit, showed efficient neutralizing activity against the wild-type MERS-CoV strain EMC/2012, with a half maximal inhibitory concentration of 0.2 mu g/mL. We concluded that a novel neutralizing epitope for MERS-CoV also resides on the NTD of the S protein, indicating that the NTD might be important during the viral infection process. Our findings have significant implications for further vaccine design and for the development of prophylactic and therapeutic monoclonal immunotherapies against MERS-CoV infection.

MERS-CoV spike protein: a key target for antivirals

EXPERT OPINION ON THERAPEUTIC TARGETS

Authors: Du, Lanying; Yang, Yang; Zhou, Yusen; Lu, Lu; Li, Fang; Jiang, Shibo

Introduction: The continual Middle East respiratory syndrome (MERS) threat highlights the importance of developing effective antiviral therapeutics to prevent and treat MERS coronavirus (MERS-CoV) infection. A surface spike (S) protein guides MERS-CoV entry into host cells by binding to cellular receptor dipeptidyl peptidase-4 (DPP4), followed by fusion between virus and host cell membranes. MERS-CoV S protein represents a key target for developing therapeutics to block viral entry and inhibit membrane fusion.Areas covered: This review illustrates MERS-CoV S protein's structure and function, particularly S1 receptor-binding domain (RBD) and S2 heptad repeat 1 (HR1) as therapeutic targets, and summarizes current advancement on developing anti-MERS-CoV therapeutics, focusing on neutralizing monoclonal antibodies (mAbs) and antiviral peptides.Expert opinion: No anti-MERS-CoV therapeutic is approved for human use. Several S-targeting neutralizing mAbs and peptides have demonstrated efficacy against MERS-CoV infection, providing feasibility for development. Generally, human neutralizing mAbs targeting RBD are more potent than those targeting other regions of S protein. However, emergence of escape mutant viruses and mAb's limitations make it necessary for combining neutralizing mAbs recognizing different neutralizing epitopes and engineering them with improved efficacy and reduced cost. Optimization of the peptide sequences is expected to produce next-generation anti-MERS-CoV peptides with improved potency.

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