Abstract:
:Viruses have exerted a constant and potent selective pressure on human genes throughout evolution. We utilized the marks left by selection on allele frequency to identify viral infection-associated allelic variants. Virus diversity (the number of different viruses in a geographic region) was used to measure virus-driven selective pressure. Results showed an excess of variants correlated with virus diversity in genes involved in immune response and in the biosynthesis of glycan structures functioning as viral receptors; a significantly higher than expected number of variants was also seen in genes encoding proteins that directly interact with viral components. Genome-wide analyses identified 441 variants significantly associated with virus-diversity; these are more frequently located within gene regions than expected, and they map to 139 human genes. Analysis of functional relationships among genes subjected to virus-driven selective pressure identified a complex network enriched in viral products-interacting proteins. The novel approach to the study of infectious disease epidemiology presented herein may represent an alternative to classic genome-wide association studies and provides a large set of candidate susceptibility variants for viral infections.
journal_name
PLoS Genetjournal_title
PLoS geneticsauthors
Fumagalli M,Pozzoli U,Cagliani R,Comi GP,Bresolin N,Clerici M,Sironi Mdoi
10.1371/journal.pgen.1000849subject
Has Abstractpub_date
2010-02-19 00:00:00pages
e1000849issue
2eissn
1553-7390issn
1553-7404journal_volume
6pub_type
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