Structural Requirements and Plasticity of Receptor-Binding Domain in Human Coronavirus Spike

The most recent human coronaviruses including severe acute respiratory syndrome coronavirus-2 causing severe respiratory tract infection and high pathogenicity bring significant global public health concerns. Infections are initiated by recognizing host cell receptors by coronavirus spike protein S1...

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Main Authors: Yajuan Li, Peiyi Zheng, Tingting Liu, Cuixiao Shi, Bo Wang, Yuanhong Xu, Tengchuan Jin
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Molecular Biosciences
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmolb.2022.930931/full
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author Yajuan Li
Peiyi Zheng
Tingting Liu
Cuixiao Shi
Bo Wang
Yuanhong Xu
Tengchuan Jin
author_facet Yajuan Li
Peiyi Zheng
Tingting Liu
Cuixiao Shi
Bo Wang
Yuanhong Xu
Tengchuan Jin
author_sort Yajuan Li
collection DOAJ
description The most recent human coronaviruses including severe acute respiratory syndrome coronavirus-2 causing severe respiratory tract infection and high pathogenicity bring significant global public health concerns. Infections are initiated by recognizing host cell receptors by coronavirus spike protein S1 subunit, and then S2 mediates membrane fusion. However, human coronavirus spikes undergo frequent mutation, which may result in diverse pathogenesis and infectivity. In this review, we summarize some of these recent structural and mutational characteristics of RBD of human coronavirus spike protein and their interaction with specific human cell receptors and analyze the structural requirements and plasticity of RBD. Stability of spike protein, affinity toward receptor, virus fitness, and infectivity are the factors controlling the viral tropisms. Thus, understanding the molecular details of RBDs and their mutations is critical in deciphering virus evolution. Structural information of spike and receptors of human coronaviruses not only reveals the molecular mechanism of host–microbe interaction and pathogenesis but also helps develop effective drug to control these infectious pathogens and cope with the future emerging coronavirus outbreaks.
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spelling doaj.art-c503e2305a5340f58d835983a1261db42022-12-22T00:57:34ZengFrontiers Media S.A.Frontiers in Molecular Biosciences2296-889X2022-07-01910.3389/fmolb.2022.930931930931Structural Requirements and Plasticity of Receptor-Binding Domain in Human Coronavirus SpikeYajuan Li0Peiyi Zheng1Tingting Liu2Cuixiao Shi3Bo Wang4Yuanhong Xu5Tengchuan Jin6Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, ChinaLaboratory of Structural Immunology, CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, ChinaDepartment of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, ChinaDepartment of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, ChinaDepartment of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, ChinaDepartment of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, ChinaLaboratory of Structural Immunology, CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, ChinaThe most recent human coronaviruses including severe acute respiratory syndrome coronavirus-2 causing severe respiratory tract infection and high pathogenicity bring significant global public health concerns. Infections are initiated by recognizing host cell receptors by coronavirus spike protein S1 subunit, and then S2 mediates membrane fusion. However, human coronavirus spikes undergo frequent mutation, which may result in diverse pathogenesis and infectivity. In this review, we summarize some of these recent structural and mutational characteristics of RBD of human coronavirus spike protein and their interaction with specific human cell receptors and analyze the structural requirements and plasticity of RBD. Stability of spike protein, affinity toward receptor, virus fitness, and infectivity are the factors controlling the viral tropisms. Thus, understanding the molecular details of RBDs and their mutations is critical in deciphering virus evolution. Structural information of spike and receptors of human coronaviruses not only reveals the molecular mechanism of host–microbe interaction and pathogenesis but also helps develop effective drug to control these infectious pathogens and cope with the future emerging coronavirus outbreaks.https://www.frontiersin.org/articles/10.3389/fmolb.2022.930931/fullhuman coronavirusreceptor-binding domainstructureplasticitymutation
spellingShingle Yajuan Li
Peiyi Zheng
Tingting Liu
Cuixiao Shi
Bo Wang
Yuanhong Xu
Tengchuan Jin
Structural Requirements and Plasticity of Receptor-Binding Domain in Human Coronavirus Spike
Frontiers in Molecular Biosciences
human coronavirus
receptor-binding domain
structure
plasticity
mutation
title Structural Requirements and Plasticity of Receptor-Binding Domain in Human Coronavirus Spike
title_full Structural Requirements and Plasticity of Receptor-Binding Domain in Human Coronavirus Spike
title_fullStr Structural Requirements and Plasticity of Receptor-Binding Domain in Human Coronavirus Spike
title_full_unstemmed Structural Requirements and Plasticity of Receptor-Binding Domain in Human Coronavirus Spike
title_short Structural Requirements and Plasticity of Receptor-Binding Domain in Human Coronavirus Spike
title_sort structural requirements and plasticity of receptor binding domain in human coronavirus spike
topic human coronavirus
receptor-binding domain
structure
plasticity
mutation
url https://www.frontiersin.org/articles/10.3389/fmolb.2022.930931/full
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