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10.3390/genes12060826

http://scihub22266oqcxt.onion/10.3390/genes12060826
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34072181!8227412!34072181
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suck abstract from ncbi


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pmid34072181      Genes+(Basel) 2021 ; 12 (6): ä
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  • Mutational Asymmetries in the SARS-CoV-2 Genome May Lead to Increased Hydrophobicity of Virus Proteins #MMPMID34072181
  • Matyasek R; Rehurkova K; Berta Marosiova K; Kovarik A
  • Genes (Basel) 2021[May]; 12 (6): ä PMID34072181show ga
  • The genomic diversity of SARS-CoV-2 has been a focus during the ongoing COVID-19 pandemic. Here, we analyzed the distribution and character of emerging mutations in a data set comprising more than 95,000 virus genomes covering eight major SARS-CoV-2 lineages in the GISAID database, including genotypes arising during COVID-19 therapy. Globally, the C>U transitions and G>U transversions were the most represented mutations, accounting for the majority of single-nucleotide variations. Mutational spectra were not influenced by the time the virus had been circulating in its host or medical treatment. At the amino acid level, we observed about a 2-fold excess of substitutions in favor of hydrophobic amino acids over the reverse. However, most mutations constituting variants of interests of the S-protein (spike) lead to hydrophilic amino acids, counteracting the global trend. The C>U and G>U substitutions altered codons towards increased amino acid hydrophobicity values in more than 80% of cases. The bias is explained by the existing differences in the codon composition for amino acids bearing contrasting biochemical properties. Mutation asymmetries apparently influence the biochemical features of SARS CoV-2 proteins, which may impact protein-protein interactions, fusion of viral and cellular membranes, and virion assembly.
  • |*Genome, Viral[MESH]
  • |*Hydrophobic and Hydrophilic Interactions[MESH]
  • |*Mutation[MESH]
  • |APOBEC Deaminases[MESH]
  • |Alleles[MESH]
  • |Amino Acid Substitution[MESH]
  • |Amino Acids/chemistry/genetics[MESH]
  • |COVID-19/*virology[MESH]
  • |Evolution, Molecular[MESH]
  • |Genetic Variation[MESH]
  • |Genotype[MESH]
  • |Host-Pathogen Interactions[MESH]
  • |Humans[MESH]
  • |Phylogeny[MESH]
  • |Polymorphism, Single Nucleotide[MESH]
  • |Protein Binding[MESH]
  • |Protein Interaction Domains and Motifs[MESH]
  • |SARS-CoV-2/*genetics[MESH]
  • |Spike Glycoprotein, Coronavirus/chemistry/genetics[MESH]


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