Genomic organization of P. acnes phages and the location of CRISPR protospacers. All currently sequenced P. acnes phage genomes have a length ranging from 29,017 to 29,739 bp. Most of the dsDNA is coding sequence; 45–47 open reading frames (ORFs) exist. In addition, a 1.4 kb noncoding region (27431–28877 in phage PA6) seems to have a regulatory function. Open reading frames (arrows) in gray represent genes for which CRISPR spacers have been identified. The number in the ORFs denotes the actual number of protospacers identified for each gene. For a more specific map, the reader is referred to the Supplementary Table 2. The figure is adapted from [34].
