#H19 #influenza A virus exhibits #species-specific #MHC class II #receptor usage, Cell Host Microbe: https://www.cell.com/cell-host-microbe/abstract/S1931-3128(24)00190-2?rss=yes
Influenza A virus H19 subtype does not bind the canonical receptor #sialic acid. H19 utilizes MHC class II #proteins from distinct species for host cell entry.
Mutating the putative canonical RBS of H19 restores sialic acid dependency. Residues in the MHC class II α chain confer species-specific entry of H19.