Ratio to Maximum and Rank Ordering of Rare Codons Computed from Pooled Synonymous Codon Frequencies for 10,862 Human RefSeqs
| Amino acid | Codon number | |||||
| 1 | 2 | 3 | 4 | 5 | 6 | |
| PHE | 0.869 | 1.000 | ||||
| LEU | 0.332 (8) | 0.481 (14) | 0.181 (1) | 1.000 | 0.196 (2) | 0.327 (6) |
| ILE | 0.770 | 1.000 | 0.342 (9) | |||
| MET | 1.000 | |||||
| VAL | 0.392 (12) | 0.509 | 0.254 (4) | 1.000 | ||
| SER | 0.771 | 0.896 | 0.621 | 0.233 (3) | 0.642 | 1.000 |
| PRO | 0.897 | 1.000 | 0.866 | 0.352 (10) | ||
| THR | 0.700 | 1.000 | 0.802 | 0.331 (7) | ||
| ALA | 0.667 | 1.000 | 0.576 | 0.261 (5) | ||
| TYR | 0.802 | 1.000 | ||||
| HIS | 0.727 | 1.000 | ||||
| GLN | 0.361 (11) | 1.000 | ||||
| ASN | 0.894 | 1.000 | ||||
| LYS | 0.761 | 1.000 | ||||
| ASP | 0.890 | 1.000 | ||||
| GLU | 0.757 | 1.000 | ||||
| CYS | 0.838 | 1.000 | ||||
| TRP | 1.000 | |||||
| ARG | 0.404 (13) | 0.904 | 0.548 | 0.990 | 1.000 | 0.966 |
| GLY | 0.485 (15) | 1.000 | 0.744 | 0.712 | ||