Fig. 1.

Crystal structure of GerK₃A^NTD. (A) Schematic representation of the domain organization of GerK₃A. GerK₃A^NTD (residues 26–302) comprises N1, linker, and N2 domains. The boundaries of the N1 and N2 domains are defined according to results presented here. (B) Ribbon diagram of GerK₃A^NTD, with the secondary structure elements labeled. α-helices and β-strands are shown in red and pink, respectively. The disordered linker region is marked by a dashed line. (C) Topology diagram of GerK₃A^NTD. Cylinders and arrows represent α-helices and β-strands, respectively.