SARS-CoV-2 Virus-Host Interaction: Currently Available Structures and Implications of Variant Emergence on Infectivity and Immune Response.
PMID: 34639178
2021
International journal of molecular sciences
Abstract: These include mutations S13I and
Conclusion: These include mutations S13I and W152C, decreasing antibody binding, N460K, increasing RDB affinity, or Q498R, positively affecting both properties .
Conclusion: These include mutations S13I and W152C, decreasing antibody binding, N460K, increasing RDB affinity, or Q498R, positively affecting both properties.
Discussion: Crucially, variant Epsilon has additional mutations, S13I and W152C, resulting in severe decrease of neutralization for NTD-directed Abs, due to a new disulphide bond inducing a conformational change.
Temporal-Geographical Dispersion of SARS-CoV-2 Spike Glycoprotein Variant Lineages and Their Functional Prediction Using in Silico Approach.
Result: Dual mutants containing D614G and other amino acid changes, including those under positive selection or observed in VOCs (L5F, L18F, S98F, W152L/C, E154K, L222V, and A262S in S1-NTD; N439K, L452Q/R, S477N, L478R/K, E484K/Q, N501Y, and A570D within S1-RBD; Q677H/P and P681H/R in S1-CTD; T716I,
Re-emergence of Gamma-like-II and emergence of Gamma-S:E661D SARS-CoV-2 lineages in the south of Brazil after the 2021 outbreak.
Discussion: A neutralizing antibody activity study using convalescent serum from patients or serum from vaccinated individuals showed a 3-sixfold reduction against the B.1.429 variant, and furthermore, the neutralizing activity of mAbs targeting NTD was completely blocked due to the combined mutations S:S13I and S:W152C in that domain.
Discussion: Additional information from the GISAID (GISAID:2021-06-01) showed that the S: Discussion: The infective capacities of mutations occurring in the B.1.429 variant were investigated using pseudoviruses carrying the D614G mutation together with the L452R or W152C mutations infected in 293 T cells expressing the ACE2 receptor as well as the cofactor TMPRSS2.
SARS-CoV-2 Delta (B.1.617.2) Variant: A Unique T478K Mutation in Receptor Binding Motif (RBM) of Spike Gene.
A rigorous framework for detecting SARS-CoV-2 spike protein mutational ensemble from genomic and structural features.
PMID: 34806033
2021
Current research in structural biology
Result: Specifically, L18F, T19R, and T20N are present in the N-terminus epitope, whereas G142D, W152 R/L/C, M153T, and F157 are present in the supersite beta-hairpin epitope.
Phylogenomics and population genomics of SARS-CoV-2 in Mexico during the pre-vaccination stage reveals variants of interest B.1.1.28.4 and B.1.1.222 or B.1.1.519 and the nucleocapsid mutation S194L associated with symptoms.
Result: The S13I and W152C mutations, which are situated in the N-terminal domain (NTD) of the Spike protein, have been implicated in escape from NTD-targeting monoclonal antibodies.
Result: The VRV-haplotype S13I-W152C-L452R (ICR-3) appeared in Fall 2020 and is rapidly becoming dominant in states on the West Coast, as well as appearing in selected southwestern and southeastern states (Figure 3C-F).