Fig. 1
ObgGC domain architecture. The individual structural domains of ObgGC are shown in green. The N-terminal domain (amino acids 3–158) is glycine-rich. The central, GTP-binding domain (residues 160–348) includes two switch elements (switch I and switch II) and five conserved G motifs (G1-G5; indicated in blue boxes). The C-terminal domain contains clusters of acidic residues. The conserved T192 and T193 residues within the G2 motifs and introduced substitutions are designated in red