Fig. 6. Structural comparison of VH3-30-derived bnAbs bound to HA.
a H3-3I14; b H3-FI6v3; c H3-39.29; d H1-3.1. All VH3-30-derived antibodies recognize the hydrophobic groove between helix A and the fusion peptide. CDRs are shown as cartoons with residues interacting with sub-pockets (labeled as 1 through 5) shown as sticks. The fusion peptide is colored cyan with Trp21 shown as sticks; helix A is colored red and HA1 is colored orange. e Sequences for antibody CDRs, which have at least one residue that interacts with a sub-pocket. Highlighted residues coincide with which HA subpocket the interaction occurs: pocket 1-red; pocket 2-cyan; pocket 3-green; pocket 4-yellow; and pocket 5-purple.