Figure 6.

Amino acid sequence alignments of NDKs from bacteria. NDK_Halomonas: NDK from Halomonas sp. #593 (HaNDK). NDK_Pseudomonas: NDK from Pseudomonas aeruginosa (PaNDK). NDK_Escherichia: NDK from Escherichia coli (EcNDK). NDK_Myxococcus: NDK from Myxococcus xanthus (MxNDK). NDK_Salmonella: NDK from Salmonella typhimurium. These five bacteria belong to gram-negative species. NDK_Streptomyces: NDK from Streptomyces coelicolor. NDK_Bacillus: NDK from Bacillus subtilis. These two bacteria belong to gram-positive species. Sequence homologies highlighted in red; sequence identities are shown as white letters on red background box. The location of secondary structure is schematically shown above the primary sequence of enzyme. β-strands are shown as arrows; α-helices as coils and strict beta turns as TT letters. The figure was created using ESPript.²⁷