Figure 4From: Glutamine synthetase sequence evolution in the mycobacteria and their use as molecular markers for ActinobacteriaspeciationMultiple protein sequence alignment of the M. tuberculosis glnA encoded sequences shows the amount of variation between these proteins. Identical amino acid sequences are blocked; the insert sequence distinguishing GSIβ are in bold type and the active site tyrosine (position 429) is indicated in red.Back to article page