Superposition of E. coli Zur with known structures of Fur family members.

Superposition of each known structure with the protein dimers in the Zur-DNA structure was performed using the programs Superpose [52] and RAPIDO [94]. Reported here at the global superposition values for the automatically selected α-carbon structure based alignment. This analysis demonstrates that the known structures with low rmsd values correspond to protein structures in the “closed” state, capable of binding to their respective operator DNA.Superposition of E. coli Zur with known structures of Fur family members.