Correlates of SARS-CoV-2 Variants on Deaths, Case Incidence and Case Fatality Ratio among the Continents for the Period of 1 December 2020 to 15 March 2021.
Introduction: Non-spike mutations widely shared by B.1.526-E484K and B.1.526-S477N isolates include: T85I in ORF1a-nsp2; L438P in ORF1a-nsp4, a 9-base pair (bp) deletion (Delta106-108) in ORF1a-nsp6; P323L in ORF1b-nsp12; Q88H in ORF1b-nsp13; Q57H in ORF3a; and P199L and M234I in the N<
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
Abstract: A mutational analysis indicated the prevalence of D614G (S) and P323L (RdRP) variants, as well as of the Beta.1.1.7/alpha variant of concern, in agreement with the frequency of Beta.1.1.7/alpha variant in clinical samples of the same period of the third pandemic wave at the national level.
Conclusion: Our analysis indicated the high prevalence of the D614G and P323L missense mutations within S and RdRP genes, respectively; the growing trend of Q57H mutation in ORF3a; and the overrepresentation of R203K with G204R or G204L
Emergence and spread of the potential variant of interest (VOI) B.1.1.519 of SARS-CoV-2 predominantly present in Mexico.
Molecular characterization of SARS-CoV-2 from Bangladesh: implications in genetic diversity, possible origin of the virus, and functional significance of the mutations.
Abstract: The P323L was reported to increase mutation rate and D614G is associated with increased viral replication and currently most prevalent variant circulating all over the world.
Abstract: The most frequent mutation that occurred in 98% isolates was 3037C>T which is a synonymous change that usually accompanied 3 other mutations that include 241C>T, 14408C>T (P323L in RdRp) and 23403A>G (D614G in spike protein).
Discussion: The P323L mutation in RdRp is reported to be associated with increased mutation rate.
Discussion: Those mutations inclu
Delta spike P681R mutation enhances SARS-CoV-2 fitness over Alpha variant.