4.6 Article

Frustration-driven allosteric regulation and signal transmission in the SARS-CoV-2 spike omicron trimer structures: a crosstalk of the omicron mutation sites allosterically regulates tradeoffs of protein stability and conformational adaptability

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Biochemistry & Molecular Biology

SARS-CoV-2 Omicron-B.1.1.529 leads to widespread escape from neutralizing antibody responses

Wanwisa Dejnirattisai et al.

Summary: On November 24, 2021, the sequence of a new SARS-CoV-2 variant, Omicron-B.1.1.529, was announced. Compared to previous variants, Omicron has a higher number of mutations in the Spike (S) protein. Serum neutralization of Omicron by individuals vaccinated or previously infected with Alpha, Beta, Gamma, or Delta variants is significantly reduced or ineffective. Third vaccine doses can boost neutralization titers against Omicron, and high titers are observed in both vaccinated individuals and those infected with the Delta variant. Most potent monoclonal antibodies and antibodies under development are unable to effectively neutralize Omicron due to mutations in its Spike protein. Omicron has structural changes compared to earlier viruses and utilizes mutations that enhance its binding to ACE2, allowing for immune escape. This results in a large number of mutations in the ACE2 binding site and a rebalancing of receptor affinity similar to earlier pandemic viruses.
Article Biochemistry & Molecular Biology

Receptor binding and complex structures of human ACE2 to spike RBD from omicron and delta SARS-CoV-2

Pengcheng Han et al.

Summary: The study found that the omicron variant, unlike other variants, has a similar affinity to the human receptor ACE2 as the prototype variant. Multiple mutations in the omicron variant may compensate for both immune escape and transmissibility. The complex structures of the omicron and delta variants binding to ACE2 provide insights into how specific mutations affect the binding.
Article Biochemistry & Molecular Biology

Structural and functional characterizations of infectivity and immune evasion of SARS-CoV-2 Omicron

Zhen Cui et al.

Summary: The Omicron variant of SARS-CoV-2 is spreading rapidly worldwide due to its increased fitness, with spike structures that maintain stability for receptor recognition but compromise viral fusion efficiency. By altering amino acids and structures, it evades recognition by most antibodies, facilitating immune escape. The research sheds light on conserved regions for the development of broad-spectrum vaccines.
Article Multidisciplinary Sciences

Considerable escape of SARS-CoV-2 Omicron to antibody neutralization

Delphine Planas et al.

Summary: The Omicron variant of SARS-CoV-2, identified in November 2021, has spread rapidly worldwide and shows resistance to most therapeutic monoclonal antibodies and vaccine-elicited antibodies. However, it can be neutralized by antibodies generated by a booster vaccine dose.

NATURE (2022)

Article Multidisciplinary Sciences

Broadly neutralizing antibodies overcome SARS-CoV-2 Omicron antigenic shift

Elisabetta Cameroni et al.

Summary: The Omicron variant of SARS-CoV-2 has raised concerns due to its 37 amino acid substitutions in the spike protein, particularly in the receptor-binding domain (RBD), leading to increased binding affinity with human ACE2. Neutralizing activity against Omicron was greatly reduced in convalescent and vaccinated individuals compared to the ancestral virus, but this decrease was less significant after a third vaccine dose. Broadly neutralizing monoclonal antibodies recognizing conserved RBD epitopes may be crucial in combating the Omicron variant and future zoonotic transmissions.

NATURE (2022)

Article Multidisciplinary Sciences

Striking antibody evasion manifested by the Omicron variant of SARS-CoV-2

Lihong Liu et al.

Summary: The B.1.1.529/Omicron variant of SARS-CoV-2, initially detected in southern Africa, has rapidly spread globally and is expected to become dominant due to its enhanced transmissibility in the coming weeks. This variant poses a threat to the efficacy of current COVID-19 vaccines and antibody therapies due to its significant antibody resistance. Even individuals who have received vaccines and booster doses may have reduced neutralizing activity against B.1.1.529.

NATURE (2022)

Article Multidisciplinary Sciences

SARS-CoV-2 Omicron variant: Antibody evasion and cryo-EM structure of spike protein-ACE2 complex

Dhiraj Mannar et al.

Summary: The newly reported Omicron variant shows new salt bridges and hydrogen bonds formed by mutated residues in the receptor binding domain, compensating for reduced ACE2 binding affinity. It also exhibits increased antibody evasion, which likely contributes to its rapid spread.

SCIENCE (2022)

Article Multidisciplinary Sciences

Structures of the Omicron spike trimer with ACE2 and an anti-Omicron antibody

Wanchao Yin et al.

Summary: The structures of the Omicron spike trimer and its interactions with ACE2 and an anti-Omicron antibody are reported. Most mutations in Omicron are located on the spike protein surface, altering binding to many existing antibodies. Compensating mutations in the ACE2-binding site enhance binding to ACE2. The therapeutic antibody JMB2002 maintains neutralizing activity against Omicron and inhibits ACE2 binding.

SCIENCE (2022)

Article Microbiology

SARS-CoV-2 Variants Increase Kinetic Stability of Open Spike Conformations as an Evolutionary Strategy

Ziwei Yang et al.

Summary: The variants of concern of SARS-CoV-2 have mutations that enhance transmission and reduce the effectiveness of COVID-19 vaccines and treatments. These variants have a higher propensity to bind to the human receptor and exhibit slower transitions between receptor-bound states. These findings provide insights into the adaptation strategies of SARS-CoV-2.
Article Biochemistry & Molecular Biology

Broad neutralization of SARS-CoV-2 variants by an inhalable bispecific single-domain antibody

Cheng Li et al.

Summary: This study identifies two highly conserved regions on the Omicron variant receptor-binding domain that are recognized by broadly neutralizing antibodies, and generates a bispecific antibody that can simultaneously bind these regions, showing excellent therapeutic efficacy and neutralization breadth.
Article Biochemistry & Molecular Biology

Selection Analysis Identifies Clusters of Unusual Mutational Changes in Omicron Lineage BA.1 That Likely Impact Spike Function

Darren P. Martin et al.

Summary: This study found 13 rare mutations among the 30 non-synonymous nucleotide substitutions in the Omicron S-gene, which may impact important regions and functions of the S-gene. The mutations were predicted to decrease the fitness of the virus they occurred in prior to the emergence of Omicron. The study also suggests that the mutations in each cluster interact cooperatively to alter the function of Spike. Understanding how these complex and highly adaptive mutation constellations were assembled in the Omicron S-gene, and why they went undetected in the early stages, is crucial.

MOLECULAR BIOLOGY AND EVOLUTION (2022)

Article Biochemistry & Molecular Biology

Structural diversity of the SARS-CoV-2 Omicron spike

Sophie M-C Gobeil et al.

Summary: The SARS-CoV-2 Omicron variant, aided by extensive spike protein mutation, has surpassed the previously dominant Delta variant. Cryo-EM structures of the Omicron and Delta spikes reveal the conformational impacts of mutations, with the Omicron spike showing a tightly packed RBD organization and increased flexibility at the fusion peptide site.

MOLECULAR CELL (2022)

Article Multidisciplinary Sciences

Molecular basis of receptor binding and antibody neutralization of Omicron

Qin Hong et al.

Summary: This study used cryo-electron microscopy to reveal the structural features of the Omicron variant spike protein and its interactions with the ACE2 receptor and antibodies, providing important insights for further research and design of vaccines targeting this variant.

NATURE (2022)

Article Multidisciplinary Sciences

Structural basis of SARS-CoV-2 Omicron immune evasion and receptor engagement

Matthew McCallum et al.

Summary: The SARS-CoV-2 Omicron variant evades antibody-mediated immunity and exhibits enhanced affinity for host cells due to accumulation of spike mutations and remodeling of interactions with the ACE2 receptor.

SCIENCE (2022)

Article Multidisciplinary Sciences

Structural basis for potent antibody neutralization of SARS-CoV-2 variants including B.1.1.529

Tongqing Zhou et al.

Summary: In this study, the cryo-electron microscopy structures of the B.1.1.529 (Omicron) variant of SARS-CoV-2 were determined, and receptor binding domain (RBD) antibodies were evaluated for their ability to bind and neutralize this variant. The study found that certain monoclonal antibodies still retained substantial inhibitory activity and identified combinations of antibodies with synergistic neutralization.

SCIENCE (2022)

Article Multidisciplinary Sciences

Emergence and phenotypic characterization of the global SARS-CoV-2 C.1.2 lineage

Cathrine Scheepers et al.

Summary: Global genomic surveillance of SARS-CoV-2 has identified a new variant, PANGO lineage C.1.2, which has been detected in low prevalence in South Africa and eleven other countries. It has a high substitution rate and includes changes within the spike protein that have been associated with increased transmissibility or reduced neutralization sensitivity. Similar to the Beta and Delta variants, C.1.2 shows reduced neutralization sensitivity to plasma from vaccinees. However, convalescent donors infected with Beta or Delta show high plasma neutralization against C.1.2. This suggests that the efficacy of vaccines against C.1.2 will be similar to Beta and Delta, and prior infection with Beta or Delta may offer protection against C.1.2. The emergence and neutralization sensitivity of the SARS-CoV-2 PANGO lineage C.1.2 has been monitored by global health authorities.

NATURE COMMUNICATIONS (2022)

Article Cell Biology

Structural and functional impact by SARS-CoV-2 Omicron spike mutations

Jun Zhang et al.

Summary: The Omicron variant of SARS-CoV-2 has a high number of mutations, which requires a higher level of ACE2 receptor for membrane fusion and shows increased resistance to neutralizing antibodies. This suggests that Omicron has acquired the ability to evade host immunity through excessive mutations.

CELL REPORTS (2022)

Article Biology

Conformational dynamics and allosteric modulation of the SARS-CoV-2 spike

Marco A. Diaz-Salinas et al.

Summary: This study reveals the effects of ACE2 and antibody binding on the conformational dynamics of SARS-CoV-2 spike protein. The D614G mutation and antibodies targeting diverse epitopes are found to modulate the energetics of the receptor-binding domain (RBD) position and enhance ACE2 binding. These findings offer insights into the development of therapeutic antibody cocktails.
Article Chemistry, Physical

Significance of the RBD mutations in the SARS-CoV-2 omicron: from spike opening to antibody escape and cell attachment

Md Lokman Hossen et al.

Summary: In this study, we computationally examined the impact of omicron RBD mutations on its structure and interactions with surrounding domains in the spike trimer as well as with ACE2. Our findings suggest that these mutations facilitate a more efficient RBD down to up conformation and ACE2 attachment compared to WT and delta, which, along with antibody evasion, may contribute to omicron's dominance over delta.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2022)

Article Multidisciplinary Sciences

Spike mutation D614G alters SARS-CoV-2 fitness

Jessica A. Plante et al.

Summary: The D614G substitution in the SARS-CoV-2 spike protein enhances viral replication and infectivity in human lung epithelial cells, primary airway tissues, and hamsters. This variant may increase transmission in the upper respiratory tract and doesn't seem to significantly reduce vaccine efficacy. Further research on therapeutic antibodies targeting the circulating G614 virus is recommended.

NATURE (2021)

Article Biophysics

Elucidation of interactions regulating conformational stability and dynamics of SARS-CoV-2 S-protein

Takaharu Mori et al.

Summary: This study conducted molecular dynamics simulations on glycosylated S-proteins to investigate conformational stability and transition mechanisms. Key determinants of stability in each form were found to be N-glycans and interacting residues, while electrostatic interactions and hydrogen bonds drove the conformational transitions.

BIOPHYSICAL JOURNAL (2021)

Article Chemistry, Physical

Dynamic Network Modeling of Allosteric Interactions and Communication Pathways in the SARS-CoV-2 Spike Trimer Mutants: Differential Modulation of Conformational Landscapes and Signal Transmission via Cascades of Regulatory Switches

Gennady M. Verkhivker et al.

Summary: This study investigated the molecular mechanisms underlying conformational and dynamic changes in SARS-CoV-2 spike mutant trimers, revealing how mutations can differentially affect dynamics and allosteric signaling in distinct functional states. Key functional regions and regulatory centers that govern collective dynamics, allosteric interactions, and control signal transmission in the SARS-CoV-2 spike proteins were identified. The study also provided insights into allosteric regulatory mechanisms of SARS-CoV-2 spike proteins, proposing a plausible strategy for therapeutic intervention by targeting specific hotspots of allosteric interactions and communications.

JOURNAL OF PHYSICAL CHEMISTRY B (2021)

Letter Infectious Diseases

First detection of SARS-CoV-2 spike protein N501 mutation in Italy in August, 2020

Simona Fiorentini et al.

LANCET INFECTIOUS DISEASES (2021)

Article Multidisciplinary Sciences

Conformational dynamics of SARS-CoV-2 trimeric spike glycoprotein in complex with receptor ACE2 revealed by cryo-EM

Cong Xu et al.

Summary: The recent global health emergency caused by SARS-CoV-2 outbreak is mediated by the interaction between the SARS-CoV-2 trimeric spike glycoprotein and the human ACE2 receptor. The SARS-CoV-2 S trimer is more sensitive to ACE2 receptor compared to SARS-CoV S trimer, potentially contributing to its superior infectivity. Research findings depict the mechanism of ACE2-induced conformational transitions in S trimer structure, aiding in the development of anti-SARS-CoV-2 vaccines and therapeutics.

SCIENCE ADVANCES (2021)

Article Biochemistry & Molecular Biology

Evidence of escape of SARS-CoV-2 variant B.1.351 from natural and vaccine-induced sera

Daming Zhou et al.

Summary: The race to develop vaccines against SARS-CoV-2 variants, such as B.1.1.7, B.1.351, and P.1, is ongoing as these variants have mutations in the spike protein, potentially leading to immune escape. A structure-function analysis of B.1.351 revealed tighter ACE2 binding and widespread evasion from monoclonal antibody neutralization, particularly driven by the E484K mutation.
Article Biochemistry & Molecular Biology

Rapid characterization of spike variants via mammalian cell surface display

Kamyab Javanmardi et al.

Summary: The Spike Display platform characterized 200 variant SARS-CoV-2 spikes, revealing a public epitope in the N-terminal domain loops that is recognized by most NTD-binding nAbs. Mutations in NTDs of variants like B.1.1.7, B.1.351, B.1.1.28, B.1.427/B.1.429, and B.1.617.2 impact spike expression and escape most NTD-targeting nAbs. Certain variants like B.1.351 and B.1.1.28 completely evade binding by a potent ACE2 mimic.

MOLECULAR CELL (2021)

Article Multidisciplinary Sciences

Distant residues modulate conformational opening in SARS-CoV-2 spike protein

Dhiman Ray et al.

Summary: Researchers are focusing on the correlation between the RBD region of the SARS-CoV-2 virus and residues distant from it to understand molecular recognition events and predict key mutations for therapeutics. Their model can identify multiple residues with long-distance coupling with the RBD opening and successfully predict some key mutations.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

Article Multidisciplinary Sciences

Detection of a SARS-CoV-2 variant of concern in South Africa

Houriiyah Tegally et al.

Summary: The article describes a newly emerged lineage of SARS-CoV-2, 501Y.V2, characterized by eight mutations in the spike protein, which may result in increased transmissibility or immune escape. This lineage originated in South Africa and quickly became dominant in Eastern Cape, Western Cape, and KwaZuluNatal provinces within weeks.

NATURE (2021)

Article Biochemistry & Molecular Biology

Sixteen novel lineages of SARS-CoV-2 in South Africa

Houriiyah Tegally et al.

Summary: The study identified 16 new lineages of SARS-CoV-2 in South Africa between March and August 2020, with unique mutations not found elsewhere. Three lineages (B.1.1.54, B.1.1.56, and C.1) dominated during the country's first wave, accounting for approximately 42% of all infections. The C.1 lineage, with 16 nucleotide mutations including the D614G spike protein change, became the most geographically widespread by August 2020. Genomic surveillance played a crucial role in identifying the 501Y.V2 variant in South Africa in December 2020.

NATURE MEDICINE (2021)

Article Multidisciplinary Sciences

Estimated transmissibility and impact of SARS-CoV-2 lineage B.1.1.7 in England

Nicholas G. Davies et al.

Summary: A new variant of SARS-CoV-2 has emerged in England, with a higher reproduction number and potential for large resurgences of COVID-19 cases. Without stringent control measures, it is projected that COVID-19 hospitalizations and deaths in England for the first 6 months of 2021 will exceed those in 2020. The variant has spread globally and exhibited similar transmission increases in Denmark, Switzerland, and the United States.

SCIENCE (2021)

Article Multidisciplinary Sciences

Neutralization of SARS-CoV-2 lineage B.1.1.7 pseudovirus by BNT162b2 vaccine-elicited human sera

Alexander Muik et al.

Summary: A new SARS-CoV-2 lineage B.1.1.7 has emerged in the UK, which is more transmissible and faster spreading than other strains. However, a study found that the BNT162b2 vaccine offers largely preserved protection against the B.1.1.7 lineage, despite some reduced neutralizing titers.

SCIENCE (2021)

Article Biochemistry & Molecular Biology

Comparative Perturbation-Based Modeling of the SARS-CoV-2 Spike Protein Binding with Host Receptor and Neutralizing Antibodies: Structurally Adaptable Allosteric Communication Hotspots Define Spike Sites Targeted by Global Circulating Mutations

Gennady M. Verkhivker et al.

Summary: This study identified key residues within the SARS-CoV-2 spike protein that play crucial roles in binding with ACE2 host receptor, and demonstrated their impact on long-range communication in complexes through allosteric interactions. The research suggests that mutational variants and antibody-escaping mutations tend to target structurally plastic and energetically adaptable centers to modulate interactions within the complexes.

BIOCHEMISTRY (2021)

Article Chemistry, Physical

Integrated Biophysical Modeling of the SARS-CoV-2 Spike Protein Binding and Allosteric Interactions with Antibodies

Gennady M. Verkhivker et al.

Summary: The study investigates the molecular mechanisms underlying the modulation of dynamics and allosteric signaling in the SARS-CoV-2 spike proteins induced by binding to antibodies using coevolutionary analysis, molecular simulations, and perturbation-based hierarchical network modeling. Through these methods, the study identifies highly coevolving hotspots and functional clusters that enable cross-talk between distant allosteric regions in the spike complexes with antibodies, demonstrating how antibodies can induce specific and functionally relevant changes in the spike proteins by modulating their allosteric propensities and collective dynamics. The findings provide insights into the regulatory mechanisms of SARS-CoV-2 spike proteins and how antibody-escaping mutations may target energy hotspots and allosteric effector centers to control functional movements and allosteric communication in the complexes.

JOURNAL OF PHYSICAL CHEMISTRY B (2021)

Article Multidisciplinary Sciences

Increased mortality in community-tested cases of SARS-CoV-2 lineage B.1.1.7

Nicholas G. Davies et al.

Summary: Studies have shown that the SARS-CoV-2 B.1.1.7 lineage is more transmissible and may cause more severe illness compared to pre-existing variants.

NATURE (2021)

Article Biochemistry & Molecular Biology

ProteinLens: a web-based application for the analysis of allosteric signalling on atomistic graphs of biomolecules

Sophia F. Mersmann et al.

Summary: ProteinLens is an interactive web application for investigating allosteric signaling in biomolecular structures based on atomistic graph-theoretical methods. It allows systematic analysis of signaling in biomolecular structures to aid in the detection of allosteric sites and pathways.

NUCLEIC ACIDS RESEARCH (2021)

Article Biochemical Research Methods

Computational epitope map of SARS-CoV-2 spike protein

Mateusz Sikora et al.

Summary: The spike protein of the SARS-CoV-2 virus plays a crucial role in infection and is the primary target for antibodies. Through molecular dynamics simulations and bioinformatics analyses, accessible epitopes have been identified for potential vaccine development. The extensive and flexible glycan coat covering the spike protein presents challenges in antibody binding but also reveals promising epitope candidates for structure-based vaccine design.

PLOS COMPUTATIONAL BIOLOGY (2021)

Article Biophysics

Neuropilin-1 assists SARS-CoV-2 infection by stimulating the separation of Spike protein S1 and S2

Zhen-lu Li et al.

Summary: Nrp1 plays a crucial role in the entry of SARS-CoV-2 into cells, enhancing virus infectivity by facilitating the separation of S1 and S2. The study reveals how Nrp1 affects the binding and separation of S1 and S2, providing insights for potential therapeutic interventions targeting the Nrp1-assisted viral infection mechanism.

BIOPHYSICAL JOURNAL (2021)

Article Biochemistry & Molecular Biology

An infectivity-enhancing site on the SARS-CoV-2 spike protein targeted by antibodies

Yafei Liu et al.

Summary: The research found that antibodies against different domains of the SARS-CoV-2 spike protein have different effects, with some antibodies inducing an open conformation of the RBD and enhancing the virus infectivity. Structural and mutational analysis revealed the mechanisms of these antibodies, and infectivity-enhancing antibodies were detected at higher levels in severe patients.
Article Cell Biology

Mechanical activation of spike fosters SARS-CoV-2 viral infection

Wei Hu et al.

Summary: The spike protein of SARS-CoV-2 recognizes host receptors through mechanical force, accelerating viral entry and fusion. Mutations can strengthen viral binding and detachment speed, while certain antibodies derived from recovered patients show potential for therapeutic strategies.

CELL RESEARCH (2021)

Article Chemistry, Medicinal

Allosteric Control of Structural Mimicry and Mutational Escape in the SARS-CoV-2 Spike Protein Complexes with the ACE2 Decoys and Miniprotein Inhibitors: A Network-Based Approach for Mutational Profiling of Binding and Signaling

Gennady M. Verkhivker et al.

Summary: The computational framework developed in this study allows for comprehensive and rapid mutational scanning of binding energetics and residue interaction networks in the SARS-CoV-2 spike protein complexes. The research reveals the key regions of structural plasticity, mutational impact, and functional response, emphasizing the importance of dynamic crosstalk between binding affinities and structural stability with conformational adaptability for resilience.

JOURNAL OF CHEMICAL INFORMATION AND MODELING (2021)

Article Chemistry, Physical

Dynamic Profiling of Binding and Allosteric Propensities of the SARS-CoV-2 Spike Protein with Different Classes of Antibodies: Mutational and Perturbation-Based Scanning Reveals the Allosteric Duality of Functionally Adaptable Hotspots

Gennady Verkhivker et al.

Summary: The study investigates how SARS-CoV-2 spike proteins interact with different classes of antibodies through atomistic simulations and scanning approaches, revealing their functional adaptability and regulatory mechanisms. The research also explores how antibody binding modulates allosteric propensities of spike protein residues, identifying versatile allosteric centers targeted by circulating mutations that can elicit resistance to antibody binding.

JOURNAL OF CHEMICAL THEORY AND COMPUTATION (2021)

Article Chemistry, Multidisciplinary

Free Energy Landscapes from SARS-CoV-2 Spike Glycoprotein Simulations Suggest that RBD Opening Can Be Modulated via Interactions in an Allosteric Pocket

Lucy Fallon et al.

Summary: The SARS-CoV-2 coronavirus spike protein plays a crucial role in viral entry and is a target for neutralizing antibodies. By using simulations, interactions influencing spike protein dynamics can be identified for potential therapeutic targeting. Small molecules binding to specific pockets may modulate the spike protein equilibrium and shed light on its conformational changes.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Article Multidisciplinary Sciences

Broad sarbecovirus neutralization by a human monoclonal antibody

M. Alejandra Tortorici et al.

Summary: The emergence of SARS-CoV-2 variants and recurrent spillovers of coronaviruses into the human population emphasize the need for broadly neutralizing antibodies to prevent future zoonotic infections. The human monoclonal antibody S2X259 has shown promising results in neutralizing various forms of SARS-CoV-2 and potentially zoonotic sarbecoviruses by inhibiting the binding of ACE2 to the receptor-binding domain. This antibody targets a key antigenic site and may guide the design of vaccines effective against all sarbecoviruses.

NATURE (2021)

Article Chemistry, Multidisciplinary

SARS-CoV-2 simulations go exascale to predict dramatic spike opening and cryptic pockets across the proteome

Maxwell Zimmerman et al.

Summary: Researchers utilized the Folding@home project to simulate the viral proteome of SARS-CoV-2 and discovered 'cryptic' epitopes, with spike variants affecting the balance between receptor binding and immune evasion. The data and models generated provide valuable insight for the design of antiviral drugs.

NATURE CHEMISTRY (2021)

Article Chemistry, Multidisciplinary

A glycan gate controls opening of the SARS-CoV-2 spike protein

Terra Sztain et al.

Summary: Through simulations, the study reveals the mechanism of spike protein receptor binding domain (RBD) opening in SARS-CoV-2 infection, highlighting the crucial role of N-glycan in facilitating RBD opening. This research represents a milestone in ensemble pathway simulations and provides a foundation for understanding the fundamental mechanisms of viral entry and infection.

NATURE CHEMISTRY (2021)

Article Biochemistry & Molecular Biology

Effect of SARS-CoV-2 B.1.1.7 mutations on spike protein structure and function

Tzu-Jing Yang et al.

Summary: The spike protein of the SARS-CoV-2 B.1.1.7 variant exhibits mutations that affect virus binding to the host ACE2 receptor and immune evasion. The A570D and N501Y mutations have been shown to impact the stability of the spike protein structure, and an introduced neutralizing antibody can effectively neutralize different strains of the virus.

NATURE STRUCTURAL & MOLECULAR BIOLOGY (2021)

Article Multidisciplinary Sciences

SARS-CoV-2 immune evasion by the B.1.427/B.1.429 variant of concern

Matthew McCallum et al.

Summary: The novel CAL.20C (B.1.427/B.1.429) variant carries spike protein mutations, resulting in reduced neutralizing titers in vaccinated individuals and convalescent individuals. The L452R mutation reduces neutralizing activity in RBD-specific monoclonal antibodies, while the S13I and W152C mutations lead to the total loss of neutralization in NTD-specific antibodies due to antigenic supersite remodeling.

SCIENCE (2021)

Article Multidisciplinary Sciences

Effect of natural mutations of SARS-CoV-2 on spike structure, conformation, and antigenicity

Sophie M-C Gobeil et al.

Summary: SARS-CoV-2 variants with multiple spike mutations have increased transmission and resistance to antibodies. Research showed that these variants have enhanced receptor binding and a preference for receptor binding domain up states. Different variants exhibit different mechanisms for resistance to neutralizing antibodies, which helps explain their transmission and resistance.

SCIENCE (2021)

Article Multidisciplinary Sciences

Structural basis for enhanced infectivity and immune evasion of SARS-CoV-2 variants

Yongfei Cai et al.

Summary: The study found that the B.1.1.7 variant has increased receptor binding affinity, while the B.1.351 variant has developed resistance to some neutralizing antibodies by reshaping antigenic surfaces on the spike protein.

SCIENCE (2021)

Article Biology

Effects of common mutations in the SARS-CoV-2 Spike RBD and its ligand, the human ACE2 receptor on binding affinity and kinetics

Michael Barton et al.

Summary: The study analyzed the effects of mutations in the Spike protein of SARS-CoV-2 on its interaction with ACE2, finding that most mutations increased affinity with ACE2. Two ACE2 mutations were also found to enhance binding with the Spike protein.
Article Immunology

Rapid Increase in SARS-CoV-2 P.1 Lineage Leading to Codominance with B.1.1.7 Lineage, British Columbia, Canada, January-April 2021

Catherine A. Hogan et al.

Summary: This study evaluated the relative contribution of VOCs in nearly 67,000 infections in British Columbia during the first 16 weeks of 2021, finding that B.1.1.7, B.1.351, and P.1 showed different spreading patterns in the region. While B.1.1.7 and P.1 increased in proportion, P.1 expanded rapidly, while B.1.351 remained a minority.

EMERGING INFECTIOUS DISEASES (2021)

Article Biochemistry & Molecular Biology

Functional importance of the D614G mutation in the SARS-CoV-2 spike protein

Cody B. Jackson et al.

Summary: The D614G spike mutation in SARS-CoV-2 virus leads to more efficient infection of cells and animals, without affecting the affinity of the S protein for ACE2. This mutation is significant in the current global pandemic.

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS (2021)

Article Chemistry, Multidisciplinary

Interaction analyses of SARS-CoV-2 spike protein based on fragment molecular orbital calculations

Kazuki Akisawa et al.

Summary: The spike protein plays a crucial role in SARS-CoV-2 infection, and its structural properties and interaction with receptor proteins or neutralizing antibodies are of great interest. The open structure of the spike protein exhibits significant stabilization energy losses, especially in the receptor binding domain of chain-B. Binding with ACE2 or antibodies partially compensates for this loss.

RSC ADVANCES (2021)

Article Multidisciplinary Sciences

Cryo-EM structure of the 2019-nCoV spike in the prefusion conformation

Daniel Wrapp et al.

SCIENCE (2020)

Article Biochemistry & Molecular Biology

Structural and Functional Basis of SARS-CoV-2 Entry by Using Human ACE2

Qihui Wang et al.

Article Biochemistry & Molecular Biology

Structure, Function, and Antigenicity of the SARS-CoV-2 Spike Glycoprotein

Alexandra C. Walls et al.

Article Chemistry, Physical

Dynamic Asymmetry Exposes 2019-nCoV Prefusion Spike

Susmita Roy et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2020)

Article Biochemistry & Molecular Biology

Controlling the SARS-CoV-2 spike glycoprotein conformation

Rory Henderson et al.

NATURE STRUCTURAL & MOLECULAR BIOLOGY (2020)

Article Biochemistry & Molecular Biology

A thermostable, closed SARS-CoV-2 spike protein trimer

Xiaoli Xiong et al.

NATURE STRUCTURAL & MOLECULAR BIOLOGY (2020)

Article Biochemistry & Molecular Biology

Structure-guided covalent stabilization of coronavirus spike glycoprotein trimers in the closed conformation

Matthew McCallum et al.

NATURE STRUCTURAL & MOLECULAR BIOLOGY (2020)

Article Multidisciplinary Sciences

Structure-based design of prefusion-stabilized SARS-CoV-2 spikes

Ching-Lin Hsieh et al.

SCIENCE (2020)

Article Multidisciplinary Sciences

Distinct conformational states of SARS-CoV-2 spike protein

Yongfei Cai et al.

SCIENCE (2020)

Article Multidisciplinary Sciences

Potent neutralizing antibodies from COVID-19 patients define multiple targets of vulnerability

Philip J. M. Brouwer et al.

SCIENCE (2020)

Article Chemistry, Physical

Conformational transition of SARS-CoV-2 spike glycoprotein between its closed and open states

Mert Gur et al.

JOURNAL OF CHEMICAL PHYSICS (2020)

Article Biochemical Research Methods

Molecular Simulations and Network Modeling Reveal an Allosteric Signaling in the SARS-CoV-2 Spike Proteins

Gennady M. Verkhivker

JOURNAL OF PROTEOME RESEARCH (2020)

Article Multidisciplinary Sciences

Receptor binding and priming of the spike protein of SARS-CoV-2 for membrane fusion

Donald J. Benton et al.

NATURE (2020)

Article Multidisciplinary Sciences

Ultrapotent human antibodies protect against SARS-CoV-2 challenge via multiple mechanisms

M. Alejandra Tortorici et al.

SCIENCE (2020)

Article Chemistry, Multidisciplinary

Beyond Shielding: The Roles of Glycans in the SARS-CoV-2 Spike Protein

Lorenzo Casalino et al.

ACS CENTRAL SCIENCE (2020)

Article Microbiology

Real-Time Conformational Dynamics of SARS-CoV-2 Spikes on Virus Particles

Maolin Lu et al.

CELL HOST & MICROBE (2020)

Article Multidisciplinary Sciences

Surveying biomolecular frustration at atomic resolution

Mingchen Chen et al.

NATURE COMMUNICATIONS (2020)

Article Multidisciplinary Sciences

SARS-CoV-2 D614G variant exhibits efficient replication ex vivo and transmission in vivo

Yixuan J. Hou et al.

SCIENCE (2020)

Article Biochemistry & Molecular Biology

Control of the negative IRES trans-acting factor KHSRP by ubiquitination

Yu-An Kung et al.

NUCLEIC ACIDS RESEARCH (2017)

Article Biochemistry & Molecular Biology

3Drefine: an interactive web server for efficient protein structure refinement

Debswapna Bhattacharya et al.

NUCLEIC ACIDS RESEARCH (2016)

Article Biochemistry & Molecular Biology

Protein Frustratometer 2: a tool to localize energetic frustration in protein molecules, now with electrostatics

R. Gonzalo Parra et al.

NUCLEIC ACIDS RESEARCH (2016)

Article Multidisciplinary Sciences

Fold and flexibility: what can proteins' mechanical properties tell us about their folding nucleus?

Sophie Sacquin-Mora

JOURNAL OF THE ROYAL SOCIETY INTERFACE (2015)

Article Chemistry, Physical

Stability Mechanisms of Laccase Isoforms using a Modified FoldX Protocol Applicable to Widely Different Proteins

Niels J. Christensen et al.

JOURNAL OF CHEMICAL THEORY AND COMPUTATION (2013)

Article Chemistry, Medicinal

Accurate Stabilities of Laccase Mutants Predicted with a Modified FoldX Protocol

Niels J. Christensen et al.

JOURNAL OF CHEMICAL INFORMATION AND MODELING (2012)

Article Biochemical Research Methods

A graphical interface for the FoldX forcefield

Joost Van Durme et al.

BIOINFORMATICS (2011)

Article Chemistry, Multidisciplinary

Frontier Residues Lining Globin Internal Cavities Present Specific Mechanical Properties

Anthony Bocahut et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2011)

Article Biochemistry & Molecular Biology

The FALC-Loop web server for protein loop modeling

Junsu Ko et al.

NUCLEIC ACIDS RESEARCH (2011)

Article Biophysics

Interaction Energy Based Protein Structure Networks

M. S. Vijayabaskar et al.

BIOPHYSICAL JOURNAL (2010)

Article Biochemistry & Molecular Biology

WIWS: a protein structure bioinformatics Web service collection

M. L. Hekkelman et al.

NUCLEIC ACIDS RESEARCH (2010)

Article Multidisciplinary Sciences

Dynamical networks in tRNA: protein complexes

Anurag Sethi et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2009)

Article Biochemistry & Molecular Biology

Improved prediction of protein side-chain conformations with SCWRL4

Georgii G. Krivov et al.

PROTEINS-STRUCTURE FUNCTION AND BIOINFORMATICS (2009)

Article Multidisciplinary Sciences

Localizing frustration in native proteins and protein assemblies

Diego U. Ferreiro et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2007)

Article Biochemistry & Molecular Biology

Locating the active sites of enzymes using mechanical properties

Sophie Sacquin-Mora et al.

PROTEINS-STRUCTURE FUNCTION AND BIOINFORMATICS (2007)

Article Biochemistry & Molecular Biology

ArchPRED: a template based loop structure prediction server

Narcis Fernandez-Fuentes et al.

NUCLEIC ACIDS RESEARCH (2006)

Article Biophysics

Investigating the local flexibility of functional residues in hemoproteins

S Sacquin-Mora et al.

BIOPHYSICAL JOURNAL (2006)

Article Biochemistry & Molecular Biology

Generalized correlation for biomolecular dynamics

OF Lange et al.

PROTEINS-STRUCTURE FUNCTION AND BIOINFORMATICS (2006)

Article Biochemistry & Molecular Biology

The FoldX web server: an online force field

J Schymkowitz et al.

NUCLEIC ACIDS RESEARCH (2005)

Article Physics, Fluids & Plasmas

Finding and evaluating community structure in networks

MEJ Newman et al.

PHYSICAL REVIEW E (2004)

Article Biochemical Research Methods

ModLoop: automated modeling of loops in protein structures

A Fiser et al.

BIOINFORMATICS (2003)

Article Biochemistry & Molecular Biology

Protein-protein docking with a reduced protein model accounting for side-chain flexibility

M Zacharias

PROTEIN SCIENCE (2003)