Identification of motif-based interactions between SARS-CoV-2 protein domains and human peptide ligands pinpoint antiviral targetsShow others and affiliations
2023 (English)In: Nature Communications, E-ISSN 2041-1723, Vol. 14, no 1, article id 5636Article in journal (Refereed) Published
Abstract [en]
The virus life cycle depends on host-virus protein-protein interactions, which often involve a disordered protein region binding to a folded protein domain. Here, we used proteomic peptide phage display (ProP-PD) to identify peptides from the intrinsically disordered regions of the human proteome that bind to folded protein domains encoded by the SARS-CoV-2 genome. Eleven folded domains of SARS-CoV-2 proteins were found to bind 281 peptides from human proteins, and affinities of 31 interactions involving eight SARS-CoV-2 protein domains were determined (K D ∼ 7-300 μM). Key specificity residues of the peptides were established for six of the interactions. Two of the peptides, binding Nsp9 and Nsp16, respectively, inhibited viral replication. Our findings demonstrate how high-throughput peptide binding screens simultaneously identify potential host-virus interactions and peptides with antiviral properties. Furthermore, the high number of low-affinity interactions suggest that overexpression of viral proteins during infection may perturb multiple cellular pathways.
Place, publisher, year, edition, pages
Nature Publishing Group, 2023. Vol. 14, no 1, article id 5636
National Category
Infectious Medicine
Identifiers
URN: urn:nbn:se:umu:diva-214614DOI: 10.1038/s41467-023-41312-8ISI: 001087583700014PubMedID: 37704626Scopus ID: 2-s2.0-85171182010OAI: oai:DiVA.org:umu-214614DiVA, id: diva2:1800639
Funder
Swedish Foundation for Strategic Research, SB16-0039Swedish Research Council, 2020-03380Swedish Research Council, 2020-04395Swedish Research Council, 2018-05851Knut and Alice Wallenberg Foundation, KAW 2020.0241Knut and Alice Wallenberg Foundation, V-2020-06992023-09-272023-09-272025-04-24Bibliographically approved