Coronavirus Spike (S) Protein: A Brief Review on Structure-Function Relationship, Host Receptors, and Role in Cell Infection

Main Article Content

Lidiane Pereira de Albuquerque
Leydianne Leite de Siqueira Patriota
Vitor Gonzatto
Emmanuel Viana Pontual
Patrícia Maria Guedes Paiva
Thiago Henrique Napoleão

Abstract

Coronaviruses (CoVs) are a broad group of spherical and enveloped viruses that cause diseases in humans and animals. CoVs have become a major threat to public health in the past two decades, exemplified by epidemics of acute respiratory syndromes and, most recently, the coronavirus disease 2019 pandemic. The envelope of CoVs contains spike (S) proteins, which are transmembrane proteins with a crown-like shape involved in cell attachment, cell‒cell fusion, host tropism, and pathogenesis. The receptors for spike proteins in host cells can be glycans and proteins. This review approaches the structural and functional aspects of the S protein of CoVs. Several issues are presented, including the structure‒function relationship, examples of host receptors, S protein-host cell connection, and its role in the entry of the virus into host cells. The S protein is one of the main targets of studies on the evolutionary relationships between CoVs, mapping of cross-host transmission events, changes in virulence, variations in disease severity level, and the development of therapeutic strategies and vaccines.

Keywords:
Severe acute respiratory syndrome, coronavirus; envelope proteins, 2019 New Coronavirus Pandemic, spike protein

Article Details

How to Cite
de Albuquerque, L. P., Siqueira Patriota, L. L. de, Gonzatto, V., Pontual, E. V., Guedes Paiva, P. M., & Napoleão, T. H. (2020). Coronavirus Spike (S) Protein: A Brief Review on Structure-Function Relationship, Host Receptors, and Role in Cell Infection. Advances in Research, 21(9), 116-124. https://doi.org/10.9734/air/2020/v21i930240
Section
Review Article

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