ArticlebioRxiv : the preprint server for biology2025
Human Coronavirus HKU1 Neutralizing Monoclonal Antibodies Target Diverse Epitopes Within and Around the TMPRSS2 Receptor Binding Site.
Article in bioRxiv : the preprint server for biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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25 authors.
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Abstract
Endemic human coronaviruses (HCoVs), like HCoV-HKU1, account for ~30% of common cold/year and can cause serious upper and lower respiratory infections, yet no licensed vaccines target HCoVs. In fact, little is known about HCoV-HKU1's antigenic landscape. Thus, we characterized key interactions between HCoV-HKU1 spike (S) with monoclonal antibodies (mAbs) isolated from pre-pandemic HCoV-HKU1 convalescent PBMCs. We isolated 14 mAbs, which bound distinct S regions: receptor binding domain (RBD), N-terminal domain (NTD), and S2 subunit. Structural and functional studies revealed three groups of RBD-specific mAbs targeting diverse footprints within and around the TMPRSS2 receptor binding site, exemplified by: (1) The most potently neutralizing mAb, H501-022 (IC
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