Result: Additionally, for the T716I and S982A variants, substitution frequencies increased over time (respectively, from 0.88% in December to 51.61% in February (OR: 10.59, 95% CI: 7.13-16.11, p < 0.0001) and from 0.88% in December to 50.97% in February (OR: 10.53, 95% CI: 6.97-15.72, p < 0.0001).
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.
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 signif
The Emergence and Spread of Novel SARS-CoV-2 Variants.
Abstract: However, the key mutations-N501Y (44.6%), S982A (44.4%), A570D (43.3%), T716I (40.4%), and P681H (40.1%) were also recorded in spike protein.
Result: The most common amino acid substitutions were D614G (83.4%) followed by N501Y (44.6%), S982A (44.4%), A570D (43.3%), T716I (40.4%), and P681H (40.1%) in Spike (S) protein.
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.
Rise and Fall of SARS-CoV-2 Lineage A.27 in Germany.
Result: Intriguingly, one of the genomes (EPI_ISL_1567985) encoded S-L452R, S-N501Y, and S-G1219V associated with six other amino acid changes in the spike (A570D, D614G, P681H, T716I, S982A, I1221V), most interestingly comprising D614G and also P681H (Figure 4B).
Evolution, Mode of Transmission, and Mutational Landscape of Newly Emerging SARS-CoV-2 Variants.
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: .
Method: 3 to B.1.1.7 spike protein defining mutations - defining deletions:H69,V70,Y144/ Y145 plus defining amino a
Discussion: On the other hand, given that V10 emerged from V7, then S982A deletion must had occurred in V7.
Discussion: while V22 can be also linked to V9, but two alterations must had happened: L18F non-defining substitution and deletion of S982A defining substitution.