Fig. 6

3D visualization of the PhoA-WT (left) and PhoA-U structures (right). Left—PhoA-Dimer WT—chain B—white. Right—PhoA-U – white fragment space filling—the N-terminal fragment absent in final PhoA-WT form of the discussed enzyme. Residues distinguished: red space filling—residues eliminated to reach status expressed by RD < 0.5, green – catalytic residues, yellow—residues engaged in P–P interaction in final PhoA-WT; black – residues engaged in P-P inreaction and simultaneously emgaged in P-P interaction