Structural analysis of SARS-CoV-2 genome and predictions of the human interactome
Structural analysis of SARS-CoV-2 genome and predictions of the human interactome
ABSTRACTSpecific elements of viral genomes regulate interactions within host cells. Here, we calculated the secondary structure content of >2000 coronaviruses and computed >100000 human protein interactions with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The genomic regions display different degrees of conservation. SARS-CoV-2 domain encompassing nucleotides 22500 – 23000 is conserved both at the sequence and structural level. The regions upstream and downstream, however, vary significantly. This part codes for the Spike S protein that interacts with the human receptor angiotensin-converting enzyme 2 (ACE2). Thus, variability of Spike S may be connected to different levels of viral entry in human cells within the population.Our predictions indicate that the 5’ end of SARS-CoV-2 is highly structured and interacts with several human proteins. The binding proteins are involved in viral RNA processing such as double-stranded RNA specific editases and ATP-dependent RNA-helicases and have strong propensity to form stress granules and phase-separated complexes. We propose that these proteins, also implicated in viral infections such as HIV, are selectively recruited by SARS-CoV-2 genome to alter transcriptional and post-transcriptional regulation of host cells and to promote viral replication.
570, SARS-CoV-2; genome; human interactome, Virulence, SARS-CoV-2, 610, :Biological sciences [Science], Computational Biology, COVID-19, Genome, Viral, Virus Internalization, Virus Replication, Science::Biological sciences, Coronavirus Spike Glycoprotein, Spike Glycoprotein, Coronavirus, Genetics, Humans, Angiotensin-Converting Enzyme 2, Protein Interaction Maps, ACE2 Protein, Protein Binding
570, SARS-CoV-2; genome; human interactome, Virulence, SARS-CoV-2, 610, :Biological sciences [Science], Computational Biology, COVID-19, Genome, Viral, Virus Internalization, Virus Replication, Science::Biological sciences, Coronavirus Spike Glycoprotein, Spike Glycoprotein, Coronavirus, Genetics, Humans, Angiotensin-Converting Enzyme 2, Protein Interaction Maps, ACE2 Protein, Protein Binding
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