Observed (Phosphorimage) protein levels vs. Codon Adaptation Index (CAI)

Codon Adaptation Index (CAI) Sharp and Li (1987); fi is the relative frequency of codon i in the coding sequence, and Wi the ratio of the frequency of codon i to the frequency of the major codon for the same amino-acid.

ln(CAI)= S fi ln (Wi)

i=1,61

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