Table 1.
Examples of bacterial genomes and their CpG-motif frequency.
| Genome | Class | %GC | CpG motifs/kb (single strand) | Accession |
|---|---|---|---|---|
| Escherichia coli | γ-Proteobacteria | 51 | 76.5 | NC_020518.1 |
| Candidatus Midichloria mitochondrii IricVA | α-Proteobacteria | 37 | 23.8 | NC_015722.1 |
| Rickettsia bellii | α-Proteobacteria | 32 | 20.4 | NC_007940.1 |
| Wolbachia endosymbiont of Drosophila melanogaster | α-Proteobacteria | 35 | 20.2 | NC_002978.6 |
| H2 endosymbiont | α-Proteobacteria | 28 | 7.1 | NPHZ00000000 |
| Clostridium perfringens | Clostridia | 29 | 5.2 | NC_003366.1 |
Among the α-Proteobacteria, the Trichoplax sp. H2 endosymbiont is characterized by an extremely low CpG-content.