Figure 6. Intermolecular interactions between Bobi-like (15199) major capsid proteins.

A) Interactions between the A₃ and A₄ loops of one major capsid protein subunit with an adjacent subunit for phages Bridgette, Muddy, and Ziko. B) The interaction between the A₁ and A₂ loops of one major capsid protein subunit and an adjacent major capsid protein in Adephagia (top) and a zoomed-in viewpoint of the same structure with the intermolecular interactions between sidechains shown and the conserved salt bridge highlighted with a black box (bottom). The Arginine/Glutamic acid salt bridge between the A₂ loop (R198) and the A₁ loop (E162) is shown. C) The P-loops of three major capsid protein subunits in Adephagia are colored in three different shades of magenta. The black triangle shows the center of the local 3-fold axis.