From: Comparison of codon usage measures and their applicability in prediction of microbial gene expressivity
None
Low-1
Low-2
Med-1
Med-2
High-1
High-2
f(A)
0.250
0.200
0.125
0.050
f(G)
0.300
0.375
0.450
f(C)
0.400
0.850
f(T)