Fig. 1: Structures of PopP2 in apo and InsP6-bound state.
From: Secondary-structure switch regulates the substrate binding of a YopJ family acetyltransferase

a Schematic illustration of PopP2 protein, with the regulatory domain in pink and the catalytic core in blue. Similar colors are used in other panels unless otherwise indicated. b Crystal structure of PopP2 in apo state. The α-helices and β-strands are counted in alphabetic and numeric orders, respectively. The catalytic triad (H260/D279/C321) is shown as a stick representation. The regulatory domain (residues 377–447) is absent. c Crystal structure of PopP2 in complex with InsP6 and CoA (PDB code: 5W3Y). InsP6 and CoA are shown in stick presentation.