Fig. 5.

Saliva-binding assay of wild-type and various mutant P particles with single amino acid mutations at the HBGA-binding interface of GII.6 virus. A Saliva binding of wild-type GII.6 ​P particles with a panel of oligosaccharides representing different HBGA, secretor ABO, and non-secretor's saliva samples. B–H Saliva binding of seven mutant P particles with single amino acid mutations at the HBGA-binding interface with the same panel of saliva as wild-type P particles. The Y axes indicate the binding signals in optical densities at OD₄₅₀, while the X-axes indicate different saliva samples.