Figure 1 (Left) X-ray crystallographic structure of a virion of Pseudoalteromonas phage PM2 at 7 Å resolution, viewed along two-fold axis of symmetry (courtesy of N.G.A. Abrescia). (Middle) A schematic presentation and (right) negative stain electron micrograph of Pseudoalteromonas phage PM2 particles. The bar represents 50 nm.
Figure 2 Genome organization of Pseudoalteromonas phage PM2 (PM2). The genome is a 10,079 bp highly supercoiled circular dsDNA molecule containing 21 ORFs (as arrows showing their orientations) and three operons (OER, OEL and OL). ORFs shown to code for functional proteins are classified as genes and given a Roman numeral. The different colors indicate the ORFs (yellow), a gene for replication initiation protein (orange) and the following groups of genes: transcriptional regulation (magenta), structural proteins (blue) and lysis (green).