From: Relationship between amino acid composition and gene expression in the mouse genome
 |  | The 3' adjacent nucleotide | |||||
---|---|---|---|---|---|---|---|
Codon type | Third nucleotide | T | C | A | G | Â | H |
All | T | 45922 | 71142 | 48193 | 135728 | Â | 165257 |
 | C | 88111 | 113015 | 141307 | 45671 | ** | 342433 |
T-adapted | T | 24963 | 42070 | 22892 | 64855 | Â | 89925 |
 | C | 44589 | 54213 | 72472 | 21423 | ** | 171274 |
C-adapted | T | 20959 | 29072 | 25301 | 70873 | Â | 75332 |
 | C | 43522 | 58802 | 68835 | 24248 | ** | 171159 |