In:
PNAS Nexus, Oxford University Press (OUP)
Abstract:
Minor intron-containing genes (MIGs) account for less than 2% of all human protein coding genes and are uniquely dependent on the minor spliceosome for proper excision. Despite their low numbers, we surprisingly found significant enrichment of MIG-encoded proteins (MIG-Ps) in protein-protein interactomes and host factors of positive sense RNA viruses including, SARS-CoV-1, SARS-CoV-2, MERS-CoV, and Zika virus. Similarly, we observed significant enrichment of MIG-Ps in the interactomes and sets of host factors of negative sense RNA viruses such as Ebola virus, influenza A virus, and the retrovirus HIV-1. We also found enrichment of MIG-Ps in double stranded DNA viruses such as Epstein-Barr virus, human papillomavirus and herpes simplex viruses. In general, MIG-Ps were highly connected and placed in central positions in a network of human host protein interactions. Moreover, MIG-Ps that interact with viral proteins were enriched with essential genes. We also provide evidence that viral proteins interact with ancestral MIGs, that date back to unicellular organisms and are mainly involved in basic cellular functions, such as cell cycle, cell division, and signal transduction. Our results suggest that MIG-Ps form a stable, evolutionarily conserved backbone that viruses putatively tap to invade and propagate in human host cells.
Type of Medium:
Online Resource
ISSN:
2752-6542
DOI:
10.1093/pnasnexus/pgad479
Language:
English
Publisher:
Oxford University Press (OUP)
Publication Date:
2024
detail.hit.zdb_id:
3120703-0
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