Table 1.
Expected versus observed OSC frequencies of selected genomes under models of different compositional biases.
| Organism | Phylogenetic division | G+C% of coding region | Expected OSC frequency under different compositional models | Observed OSC frequency | ||||
|---|---|---|---|---|---|---|---|---|
| Codon usage bias | Dipeptide bias | Dicodon bias | Trinucleotide bias (2nd order Markov model) | Hexanucleotide bias (5th order Markov model) | ||||
| Laribacter hongkongensis | Beta-proteobacteria | 63.5% | 6.068 ± 0.025 | 6.190 ± 0.024 | 5.024 ± 0.022 | 4.947 ± 0.021 | 5.020 ± 0.021 | 5.030 |
| Staphylococcus aureus | Firmicutes | 33.6% | 19.789 ± 0.038 | 20.158 ± 0.037 | 20.501 ± 0.042 | 20.483 ± 0.044 | 20.482 ± 0.042 | 20.512 |
| Yersinia enterocolitica | Gamma-proteobacteria | 48.4% | 12.530 ± 0.026 | 12.825 ± 0.028 | 12.902 ± 0.026 | 12.848 ± 0.028 | 12.890 ± 0.030 | 12.912 |
| Thermotoga maritima | Thermotogae | 46.4% | 12.626 ± 0.042 | 12.177 ± 0.039 | 10.532 ± 0.042 | 10.501 ± 0.038 | 10.519 ± 0.037 | 10.534 |
| Deinococcus radiodurans | Deinococcus-Thermus | 67.7% | 4.619 ± 0.021 | 5.118 ± 0.023 | 4.371 ± 0.021 | 4.295 ± 0.022 | 4.369 ± 0.021 | 4.375 |
| Pyrococcus furiosus | Euryarchaeota | 41.1% | 17.385 ± 0.046 | 16.927 ± 0.044 | 16.567 ± 0.050 | 17.520 ± 0.048 | 17.557 ± 0.046 | 17.574 |
Values are expressed as (mean ± SD) number of OSC per 100 codons.