sarcotropin-peptide The SARS-CoV-2 fusion peptide is a critical component of the virus's spike protein, playing an indispensable role in the process of membrane fusion that enables viral entry into host cells.作者：P Singh·2024·被引用次数：5—We directly show thatspike protein interacts with phosphatidylserine (PS) lipidin the target membrane for mediating fusion. This short peptide sequence, located within the S2 subunit of the spike protein, undergoes structural transformations and interacts with host cell membranes, facilitating the merging of viral and cellular envelopes. Understanding the SARS-CoV-2 fusion peptide is essential for comprehending viral infection mechanisms and for developing targeted therapeutic strategies, including broadly neutralizing antibodies.
The SARS-CoV-2 fusion peptide is a functionally vital element for the virus's ability to infect host cells. Its primary role is to initiate and mediate the fusion of the viral envelope with the host cell membrane.SARS-CoV-2 Fusion Peptide-Directed Antibodies Elicited ... This process is a prerequisite for the virus to release its genetic material into the host cell, thereby commencing the infection cycle. Research indicates that the fusion peptide transforms from a disordered state in solution into a wedge-shaped structure that inserts itself into the lipid bilayer of the cell membrane. This insertion is crucial for destabilizing the membranes and promoting their subsequent fusion.
The SARS-CoV-2 fusion peptide possesses distinct structural and physicochemical properties that enable its function2025年3月5日—This study highlights the epitope targets underpinning broadly neutralizing antibody responses to coronaviruses and suggests that existing vaccines are .... It is characterized by both hydrophobic and charged residues, allowing it to interact effectively with the lipid components of cell membranes2021年5月10日—During infection the SARS-CoV-2 virusfuses its viral envelope with cellular membranes of its human host. Initial contact with the host cell and .... Studies have shown that the fusion peptide's interaction with specific lipids, such as phosphatidylserine (PS) lipid, is indispensable for SARS-CoV-2 spike-mediated fusion. Furthermore, the presence of calcium ions (Ca2+) can influence the membrane-perturbating effect of the fusion peptide, with SARS-CoV-2's fusion peptide exhibiting a higher sensitivity to Ca2+ compared to that of SARS-CoV. These interactions and structural rearrangements are key to the peptide's ability to drive membrane fusion.
The SARS-CoV-2 fusion peptide represents a significant target for the development of broadly neutralizing antibodies. While the receptor-binding domain (RBD) of the spike protein is a primary target for immune responses, it is also prone to mutations that allow the virus to evade immunity.作者：E Olmedillas·2025·被引用次数：10—TheSARS-CoV-2S2fusionsubunit drives viral entry and has sequence conservation among coronavirus spike proteins. Therefore, S2 could represent an immunogen ... In contrast, the fusion peptide, particularly within the conserved S2 subunit, is more conserved across different coronaviruses. Antibodies directed against the SARS-CoV-2 fusion peptide have been shown to elicit broad sarbecovirus neutralization. These fusion peptide-directed antibodies are elicited by natural infection and hold promise for therapeutic interventions and vaccine design, offering a potential avenue for combating a wide range of coronavirus strainsSARS-CoV-2 spike fusion peptide trans interaction with ....
The SARS-CoV-2 fusion peptide shares functional similarities with its counterparts in other coronaviruses, such as SARS-CoV2005年5月12日—Recent studies indicated that theSARS-CoVviral spike glycoprotein is a class I viral fusion protein. Afusion peptidepresent at the N- .... However, there are also notable differences in their behavior and interactions.8FDO: SARS-CoV-2 fusion peptide epitope scaffold FP15 ... For instance, the SARS-CoV-2 fusion peptide has demonstrated a greater membrane-perturbating effect than that of SARS-CoV, with a highly specific dependence on calcium ions. The fusion domain, which includes the N-terminal fusion peptide, is a conserved region across many coronaviruses, underscoring its fundamental importance in the viral entry mechanism.
Ongoing research continues to elucidate the intricate molecular mechanisms by which the SARS-CoV-2 fusion peptide operates. Investigations into its precise binding modes with host membranes, its structural dynamics during fusion, and its interactions with host factors are crucial for a comprehensive understanding of viral pathogenesis.SARS-CoV-2 peptide fragments selectively dysregulate ... Furthermore, exploring the immunogenicity of different fusion peptide epitopes and their potential as targets for pan-coronavirus vaccines remains a key area of focus. The fusion peptide's essential role in viral entry positions it as a critical target for future antiviral drug development and a valuable subject for fundamental virological research.
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