literature

Pathogenicity of SARS-CoV-2 Omicron (R346K) variant in Syrian hamsters and its cross-neutralization with different variants of concern.

PMID: 35405385 2022 EBioMedicine

Method: On deep sequencing following amino acid changes were found in the isolate.(NSP5_P132H,Spike_T95I,Spike_K417N,Spike_S373P,Spike_Q493R,Spike_N969K, Spike_H655Y,Spike_N856K,N_R203K,Spike_S371L,NSP3_A1892T,

PMID: 35396511 2022 Nature communications

Result: Amino acid substitutions close to the furin cleavage site, including H655Y and P681R/H, have been shown to increase S1/S2 cleavage efficiency, and have also been observed in other VOCs and VOIs, such as Alpha, Delta, Gamma, Mu, and Kappa (S1/S2 region in.

Result: The

Result: The majority of these substitutions (P9L, C136F, R190S, D215G, L242del, A243del, Y449H, E484K, N501Y, H655Y, and T716I), however, appeared simultaneously, further supporting a single, prolonged infection giving rise to this lineage.

SARS-CoV-2 BA.1 variant is neutralized by vaccine booster-elicited serum, but evades most convalescent serum and therapeutic antibodies.

PMID: 35380448 2022 Science translational medicine

Result: We compared the neutralization titers of these serum samples against pseudoviruses bearing spike proteins from the following variants: D614G, Omicron (A67V, del69-70, T95I, del142-144, Y145D, del211, L212I, ins214EPE, G339D, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R,

Impact of B.1.617 and RBD SARS-CoV-2 variants on vaccine efficacy: An in-silico approach.

PMID: 35370005 2022 Indian journal of medical microbiology

Discussion: D614G, T20N, D138Y, L18F, R190S, and P26S in the NTD and K417T, E484K and N501Y in the RBD region and H655Y within the furin cleavage site.

Mutational cascade of SARS-CoV-2 leading to evolution and emergence of omicron variant.

PMID: 35367284 2022 Virus research

Abstract: Mutational analysis detected 18,261 mutations in the omicron variant, majority of which were non-synonymous mutations in spike (A67, T547K, D614G, H655Y, N679K, P681H, D796Y, N856K, Q954H), followed by RNA dependent RNA polymerase (rdrp) (A1892T, I189V, P314L, K38R, T492I, V57V), ORF6 (M19M) and

PMID: 35233566 2022 Research square

Abstract: To build an investigative framework, we have applied an unsupervised machine learning approach to 4296 Omicron viral genomes collected and deposited to GISAID as of December 14, 2021, and have identified a core haplotype of 28 polymutants (A67V, T95I, G339D, R346K, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R, N501Y, Y505H,

Multiorgan and Vascular Tropism of SARS-CoV-2.

PMID: 35336922 2022 Viruses

Discussion: These mutations have not yet been characterized in the literature; however, position 655 is also mutated in the 20J/501Y.V variant (H655Y) and has been correlated to antibody neutralization escape and to the modulation of the interaction between the spike glycoprotein and ACE2 receptors.

Isolation and Genomic Characterization of SARS-CoV-2 Omicron Variant Obtained from Human Clinical Specimens.

PMID: 35336868 2022 Viruses

Introduction: Omicron has posed a serious public health concern due to the mutations/deletions associated with increased binding affinity to ACE2 (S:Q498R and S:N501Y), increased transmissibility (S:H655Y, S:N679K, and S:P681H), increased viral load (N:R203K and N:G204R), innate immune evasion (ORF1a:L3674-, ORF1a:S3675-, and ORF1a:G3676), and S-gene target failure (S:H69-).

A SARS-CoV-2 Wuhan spike virosome vaccine induces superior neutralization breadth compared to one using the Beta spike.

PMID: 35273217 2022 Scientific reports

Method: Pre-fusion spike protein ectodomain DNA constructs were designed containing the following mutations compared to the Wuhan variant (Wuhan Hu-1; GenBank: MN908947.3): deletion of H69, V70 and Y144, N501Y, A570D, D614G, P681H, T716I, S982A and D1118H in Alpha; L18F, D80A, D215G, L242H, R246I, K417N, E484K, N501Y, D614G and A701V in Beta;

Molecular definition of severe acute respiratory syndrome coronavirus 2 receptor-binding domain mutations: Receptor affinity versus neutralization of receptor interaction.

PMID: 34240429 2022 Allergy

Table: H655Y