Figure 2: The chromosomal regions of the B. clausii and B. halodurans glnA are compared with other similar organisms. Sets of genes with similar sequence are grouped with the same number; a) The graphic is centered on the B. clausii glnA1 (ABC3940) and B. halodurans glnA2 (BH3867) genes, which numbered 1. b) The graphic is centered on the B. clausii glnA2 (ABC2179), B. halodurans glnA1 (BH2360) and B. licheniformis and B. subtilis glnA genes, which numbered 1, the number 2 is aluminum resistance protein and the number 3 is GlnR.