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Table 1 Expected versus observed OSC frequencies of selected genomes under models of different compositional biases.

From: Natural selection retains overrepresented out-of-frame stop codons against frameshift peptides in prokaryotes

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 (2ndorder Markov model) Hexanucleotide bias (5thorder 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
  1. Values are expressed as (mean ± SD) number of OSC per 100 codons.