(A) Schematic representations of ROQ1 and XopQ with color-coded domain architecture: TIR, yellow; NB-ARC NDB, HD1, and WHD, light green, green, and dark green, respectively; LRR, violet; C-JID (or PL domain), light blue; and XopQ, salmon. (B and C) Composite density map of the ROQ1-XopQ complex from three cryo-EM reconstructions (B) and corresponding atomic model (C) shown in three orthogonal views. Colors are according to the nomenclature in (A).