Table 2. PDX models of CCA retain the KRAS sequence in codons 12 and 13 of the primary tumors from which they were derived.
The sequence of codon 12 of the KRAS gene was determined for F0 and F1 tumors.
| Specimen ID | KRAS codon 12 sequence change (F0) | Mutation conserved in PDX (F1) | Amino acid substitution |
|---|---|---|---|
| CCA1 | GGT | Yes | WT |
| CCA2 | GGT → GAT | Yes | G12D |
| CCA3 | GGT → GAT | Yes | G12D |
| CCA4 | GGT → GTT | Yes | G12V |
| CCA5 | GGT | Yes | WT |