Sequence alignment outcome of the of Ddn homologue proteins. Alignment of the amino acid sequences of M. tuberculosis, M. intracellulare, M. avium, M. kansasii, and M. gordonae. The topology of the Rv3547 encoded protein of M. tuberculosis is shown at the top. Red boxes with white letters indicate a single, fully conserved residue. Blue frames indicate highly conserved residues. β-Strands are rendered as arrows.