Fig. 3
From: Insights into the Geobacillus stearothermophilus species based on phylogenomic principles
Comparison of the organisation of the lac genes. Annotations are based on the assigned KEGG KO for each gene. Colours represent those genes belonging that to the same KO group and/or KEGG enzyme entry. The lac operon in S. aureus and the putative lac operons in strains A1, Sah69, B4114 as well as B. smithii (which showed the highest similarity to the putative lacA, lacB and lacC genes from strain A1). Those strains marked with an asterisk were isolated from a dairy environment. The gene organisation of the putative lac operon in strains P3 and D1 was syntenic with that of A1. The gatABC operon encodes a galactitol transport system and gatY a component of the of the GatYZ tagatose aldolase as described byVan der Heiden et al. [82]. GatY and LacD both belong to the same enzyme group (EC 4.1.2.40)