Description of RET polymorphisms and allele frequencies in the four control populations
| Less frequent allele frequencies | ||||||
|---|---|---|---|---|---|---|
| Exon | Amino acid change | Nucleotide substitution | Italy | Portugal | France | Australia |
| Exon 2 | A45A | G135A | 0.30 | 0.33 | 0.29 | 0.24 |
| Exon 13 | L769L | T2307G | 0.24 | 0.19 | 0.27 | 0.25 |
| Exon 14 | S836S | C2508T | 0.06 | 0.05 | 0.07 | 0.05 |
| Exon 15 | S904S | C2712G | 0.21 | 0.25 | 0.26 | 0.18 |