Figure 1. Crystal structure of XerD_C-FtsKγ interaction.

(A) The structure of XerD_C (orange) interacting with FtsKγ (green). Helices for FtsKγ are marked. Dotted lines show connections for which the electron density was not observed. The N- and C- termini are marked. (B) Close up of the interacting amino acids at the interface between XerD_C and FtsKγ. Hydrogen bonds are shown as dashed lines. (C) Comparison of the amino acids from E. coli FtsKγ that interact with XerD_C (this study) and the amino acids from P. aeruginosa FtsKγ that interact with KOPS DNA³¹. Filled circles above or below the amino acid represent interactions from the amino acid side-chain, and open circles are backbone contacts.