Severe acute respiratory syndrome coronavirus 2 virion protein (SARS-CoV-2 virion protein)

SARS-CoV-2 virion proteins refer collectively to the structural proteins encoded by the SARS-CoV-2 genome that constitute the mature virus particle. There are four major structural proteins: - Spike glycoprotein (S): Mediates binding to the host cell receptor ACE2 and membrane fusion, enabling viral entry. It is a class I viral fusion protein and major antigenic determinant, and the primary target for neutralizing antibodies and vaccines[1][2][4]. - Envelope protein (E): A small membrane protein with ion channel (viroporin) activity, crucial for virus assembly, budding, pathogenesis, and modulation of host cell response. It is a potential antiviral target[5][6]. - Membrane protein (M): The most abundant surface protein, determines virion shape and coordinates assembly of other structural components[1][5]. - Nucleocapsid protein (N): Binds the viral RNA genome, packages it within the virion, and has roles in viral replication and modulation of host cell biology. It is highly abundant and immunogenic[3][4]. These proteins, together with sixteen nonstructural proteins and several accessory proteins, orchestrate viral replication, assembly, immune evasion, and pathogenesis of COVID-19[2][4]. Each structural protein displays unique functions and is researched as an individual therapeutic target. Note: For structured data, information should be filled per protein target (e.g., "SARS-CoV-2 spike glycoprotein") rather than the whole group "SARS-CoV-2 virion proteins," which is nonspecific as a drug target.

Other names

SARS-CoV-2 structural proteinsSARS-CoV-2 S/E/M/N proteinsCOVID-19 virion proteins

Inhibition of viral entry (by targeting the spike protein’s interaction with the ACE2 receptor)[2][4] - Inhibition of channel activity (envelope protein/viroporin inhibitors disrupt virus budding and release)[6] - Neutralization of virus infectivity (monoclonal antibodies binding spike protein) - Inhibition of RNA replication or assembly (experimental, various target proteins)