Structural superimpositions of monomeric units for FabG. In this figure, the monomers of FabG from R. prowazekii (PDB entry 3f9i
; purple helices, yellow strands), from E. coli (PDB entry 1i01
; magenta), from M. tuberculosis (PDB entry 1uzm
; light blue) and the NADP+-bound structure from V. cholerae (PDB entry 3rsk
, pink) are superimposed. There is a significant structural variability between these structures in the proximity of the NADP+-binding site.