Figure 3. Main-chain interactions.
(A) and (B) Main-chain interactions between V3 peptide and CDR H3 in the 447-52D/V3W2R (A), and 537-10D/V3MN (B) complexes. The CDR H3 (green) and V3 (magenta) interactions of the 447-52D and 537-10D Fab/V3 structures are shown as ribbons (top panels) as well as with detailed hydrogen bonds (lower panels).