ArticleInfection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases2020
Unfolding SARS-CoV-2 viral genome to understand its gene expression regulation.
Article in Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 16 citations in OpenAlex.
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- Investigation of promoter regions, motifs, and CpG islands in the regulation of gene expression in Trametes hirsuta strain 072.Journal, genetic engineering & biotechnology · 2021Article
- In silico analysis of promoter region and regulatory elements of glucan endo-1,3-beta-glucosidase encoding genes in Solanum tuberosum: cultivar DM 1-3 516 R44.Journal, genetic engineering & biotechnology · 2021Article
- Deep Learning for SARS COV-2 Genome Sequences.IEEE access : practical innovations, open solutions · 2021Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
SARS-CoV-2 is a new virus responsible for an outbreak of respiratory illness known as COVID-19, which has spread to several countries around the world and a global effort is being undertaken to characterize the molecular features and evolutionary origins of this virus. In silico analysis of the transcription start sites, promoter regions, transcription factors and their binding sites, gene ontology, CpG islands for SARS-CoV-2 viral genome are a first step to understand the regulation mechanisms of gene expression and its association with genetic variations in the genomes. For this purpose, we first computationally surveyed all SARS-CoV-2 virus genes with the open reading frames from NCBI database and found eleven sequences to accomplish the mentioned features by using bioinformatics tools. Our analysis revealed that all (100%) of the SARS-CoV-2 virus genes have more than one TSS. By taking all TSSs with the highest predictive score we determined promoter regions and identified five common candidate motifs (MVI, MVII, MVIII, MVIV and MVV) of which MVI was found to be shared by all promoter regions of SARS-CoV-2 virus genes with the least E-value (3.8e-056, statistically highly significant). In our further analysis of MVI we showed MVI serve as binding sites for a single transcription factor (TF) family, EXPREG, involved in the regulatory mode of these genes. From EXPREG family four TFs that belongs to Cyclic AMP (cAMP) receptor protein (CRP) and Catabolite control protein A (CcpA) group mostly serve as transcriptional activator whereas two TFs that belong to LexA group always serve as transcriptional repressor in different kinds of cellular processes and molecular functions. Therefore, we unfolded SARS-CoV-2 viral genome to shed light on its gene expression regulation that could help to design and evaluate diagnostic tests, to track and trace the ongoing outbreak and to identify potential intervention options.
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