Spectrum of K-ras mutations detected and number of patients with mutations who relapsed
| No of patients | |||||
| Mutation | Nucleotide sequence | Men | Women | Total | No relapsed |
| Codon 12 | |||||
| Wild type (glycine) | GGT | 33 | 45 | 78 | 11 |
| Aspartate | GAT | 3 | 4 | 7 | 2 |
| Valine | GTT | 3 | 2 | 5 | 0 |
| Alanine | GCT | 2 | 2 | 4 | 0 |
| Serine | AGT | 2 | 0 | 2 | 1 |
| Arginine | CGT | 1 | 0 | 1 | 0 |
| Cystine | TGT | 1 | 0 | 1 | 0 |
| Codon 13 | |||||
| Wild type (glycine) | GGC | 42 | 50 | 92 | 13 |
| Aspartate | GAC | 3 | 2 | 5 | 1 |
| Cystine | TGC | 0 | 1 | 1 | 0 |