Fig. 2

Genomic context of 6S RNA in LAB (4 kb upstream and downstream of the 6S RNA gene). For each LAB family, the genomic locus of one representative species is shown. Genes present in ≥50% of the respective family are indicated with a solid border. Genes found in multiple families are colored. Hypothetical and less conserved proteins are unmarked. Putative Rho-independent terminators are indicated by red hexagons. Genes in close proximity (<20 nt) are indicated by a semicircle connecting them. These could be part of a polycistronic transcript. The complete list of genomic contexts including the NCBI reference codes is provided in Additional File 4. Further gene locus abbreviations: mnmA, tRNA 2-thiouridine(34) synthase MnmA; cd, cystein desulfurase; rpmA, 50S ribosomal protein L27; prp, ribosomal-processing cysteine protease Prp; hth, helix-turn-helix domain-containing protein; ddl, D-alanine-D-alanine ligase; alkA, DNA-3-methyladenine glycosylase (adaptive response to alkylative DNA damage)