Cell-to-cell communication via QS systems might contribute to the global regulation of multiple bacterial genes, including virulence genes, under specific environmental and growth conditions.
Further examination of M. marinum ESX-1 components identified multiple bacterial genes within the ESX-1 locus required for optimal granuloma formation and virulence in vivo, including the early secretory antigenic target ESAT-6, the ATPase EccA1 and the ESX-1 secretion-associated protein EspL (Gao et al., 2004; Volkman et al., 2010; Stoop et al., 2011; Joshi et al., 2012).
Finally, a panel of 15 bioluminescent E. coli containing multiple bacterial reporter genes associated with oxidative stress, DNA damage, heat shock, and efflux of excess metals was arrayed to screen a library of 420 pharmaceuticals [ 69].
However, the observations on NIRVs, along with the recent demonstration of multiple acquisitions of bacterial genes by fungi [ 23] shows that, although HGT is probably much less pervasive in eukaryotes than it is in prokaryotes, sequencing of multiple, diverse eukaryotic genomes reveals substantial lateral gene traffic.
These preprocessing steps comprise: download genome sequences of multiple bacterial strains, unification of gene annotations, identification of homologous gene families, multiple alignments of the gene families (employing MUSCLE), reconstruction of the phylogenetic tree (employing PHYLIP), identification of point mutations based on the multiple alignments.
We chose multiple bacterial sequences within each pectinase gene family to represent the diversity of gene sequences, based on the information at the Carbohydrate Active Enzyme site (www.cazy.org, last accessed November 2014) and the Braunschweig Enzyme Database (www.brenda-enzymes.org, last accessed November 2014).
Multiple promoters upstream of many bacterial genes pose another challenge to their classification.
Amplification and cloning were followed by full PfRpL4 gene DNA sequencing of multiple bacterial clones for each patient and examination of mutations anywhere in this gene (1 ).
The later released CAMBer is designed to identify multi-gene families from multiple bacterial strains and isolates.
To our knowledge, these are the first cases of multiple group I introns in the same bacterial gene (multiple group I introns have been reported in at least one phage gene and one prophage gene).
Based on the size of a cluster, users can easily decide whether an essential gene is conserved in multiple bacterial species or is species-specific.
