Fig. 1: TgMcrBAAA forms an asymmetric hexamer.
From: Structural asymmetry governs the assembly and GTPase activity of McrBC restriction complexes
a, b Bottom and side views of the cryo-EM density map of the TgMcrBAAA hexamer. Subunits are colored in shades of blue and green, and nucleotides are shown in yellow. c Slice section through the TgMcrBAAA hexamer map at the level of the bound nucleotides, indicated by the dashed line in b. Solid and empty arrowheads indicate tight and loose interfaces, respectively. d, e Close-up views of interacting residues at the tight D/E interface (d) and the loose A/B interface (e). Dashed lines indicate hydrogen bonds.
