Result: Co-existence of DeltaH69V70, DeltaY144, P681H, T716I, S982A, A570D, N501Y, and D1118H was the signature for the B.1.1.7 (20H/501Y.V1) variant.
Result: The last notable increasing trend was detected for D1118H, from 0.88% in December to 49.68% in February (OR: 9.90, 95% CI 6.83-15.01, p < 0.0001).
Discussion: Our analysis shows that subsequently, three genetic lines of the SARS-CoV-2 molecular evolution have emerged, with the largest clade (Clade 1, lineages B.1.1.*) being the most diverse genetically, with a significant proportion (24.6% for this clade) of the VOC B.1.1.7 variant characterized by a signature combination of the DeltaY144, PMID: 34409009
2021
Frontiers in public health
Table: D1118H
Epitope diversity of SARS-CoV-2 hyperimmune intravenous human immunoglobulins and neutralization of variants of concern.
Novel Nested-Seq Approach for SARS-CoV-2 Real-Time Epidemiology and In-Depth Mutational Profiling in Wastewater.
PMID: 34445204
2021
International journal of molecular sciences
Result: According to the % frequencies of the genetic markers A570D (23271C>A), D614G (23403A>G), P681H (23604C>A), T716I (23709C>T), S982A (24506T>G), and D1118H (24914GG>C), the Beta.1.1.7/alpha lineage VOC was detected in 80.6% +- 8.3 (mean +- SE), (median of 80.8%) of the total sequencing reads.
Delta spike P681R mutation enhances SARS-CoV-2 fitness over Alpha variant.
Method: 3 to B.1.1.7 spike protein defining mutations - defining deletions:H69,V70,Y144/ Y145 plus defining amino acid substitutions: N501Y, A570D, D614G, P681H, T716I, S982A, D1118H, two types of events can be observed in 21 out of 24 variants.
Discussion: Given that V10 emerged from V5, then D1118H deletion must had occurred in V5.
Crucial Mutations of Spike Protein on SARS-CoV-2 Evolved to Variant Strains Escaping Neutralization of Convalescent Plasmas and RBD-Specific Monoclonal Antibodies.
Introduction: In addition, several recent studies have focused on the neutralizing activity of vaccine-elicited humoral immunity against new circulating mutant lineages, including B.1.1.7 (United Kingdom, bearing mutations 69-70 del, 144 del, N501Y, A570D, D614G, P681H, T716I, S982A, and D1118H in the spike protein), B.1.429 (United States, bearing mutations S13I, W152C, L452R, and D614G in the spike protein), B.1.351(South Africa, bearing mutations D80A, D215G,