From: P-value based visualization of codon usage data
species
# genes (total)
# ribosomal protein genes
# putative alien genes
E. coli
4254
61
206
B. subtilis
4106
57
317
V. cholerae Chr1
2736
64
41
V. cholerae Chr2
1092
0
216
T. thermophilus
1973
60
5