Discussion: The root of the pandemic lies in the parental A lineage with the characteristic C8782T and T28144C mutations.
In-silico genomic landscape characterization and evolution of SARS-CoV-2 variants isolated in India shows significant drift with high frequency of mutations.
PMID: 35233173
2022
Saudi journal of biological sciences
Discussion: Our results disagreed with who studied the mutations among SARS-CoV-2 collected from various locations and reported C29095T in the N gene, T28144C in the ORF8 gene, and C8782T in the ORF1ab gene as the most frequent mutations.
Comparison of SARS-CoV-2 Evolution in Paediatric Primary Airway Epithelial Cell Cultures Compared with Vero-Derived Cell Lines.
Result: Analysing mutations in the PHE passage series, we identified four changes (C8782T; T18488T; T28144C; A29596G) relative to Wuhan-Hu-1 consistently at ~100% at all passages, likely reflecting fixation in the original virus stock (Figure 2a).
SARS-CoV-2 mutations: the biological trackway towards viral fitness.
Introduction: Cluster I includes 3037C>T; NSP3:F106F (non-structural protein3:F106F) and 14408C>T; RdRp:P323L, cluster II includes 3037C>T, 14408C>T and 23403A>G; S:D614G, cluster III includes 14408C>T, cluster IV includes 3037C>T, 14408C>T, 23403A>G, 28881G>A; N:R203K, 28882G>A
Phylogenomics reveals viral sources, transmission, and potential superinfection in early-stage COVID-19 patients in Ontario, Canada.
Discussion: Clustering of shared mutations identified two samples (S21 and S23) that belong to A.1 lineage characterized by two polymorphic sites at C8782T and T28144C.
Genomic Variations in SARS-CoV-2 Genomes From Gujarat: Underlying Role of Variants in Disease Epidemiology.
Molecular epidemiology analysis of early variants of SARS-CoV-2 reveals the potential impact of mutations P504L and Y541C (NSP13) in the clinical COVID-19 outcomes.
PMID: 33798758
2021
Infection, genetics and evolution
Result: Variation heatmap of countries demonstrated the composition of several significant genetic variation sites, including variation in ORF1ab (8782C- > T, NSP4:S76S, synonymous), S (23403 A- > G, S:D614G, missense), ORF1ab (17858 A- > G, NSP13:Y541C, missense), and ORF1ab (17747C- > T, NSP13:P504L, missense).
Pan-India novel coronavirus SARS-CoV-2 genomics and global diversity analysis in spike protein.
Result: Clades are characterized as S (C8782T, T28144C, NS8-L84S), L (C241, C3037, A23403, C8782, G11083, G25563, G26144, T28144, G228882), V (NSP6-L37F, NS3-G251V), G (S-D614S), GH (S-D614S, NS3-Q57H), S (S-D614S, NG204R).
Analysis of SARS-CoV-2 mutations in the United States suggests presence of four substrains and novel variants.
Result: Among them, 3 mutations are synonymous ones (i.e., 3037C>T-(F106F), 8782C>T-(S76S), and 18060C>T-(L7L)) and 11 mutations are the missense mutations (i.e., 1059C>T-(T85I), 14408C>T-(P323L), 23403A>G-(D614G), 25563G>T-(Q57H), 28144T>C-(L84S), 17858A>G-(Y541C), 17747C>T-(P504L),
Genomic mutations and changes in protein secondary structure and solvent accessibility of SARS-CoV-2 (COVID-19 virus).