| GENE | LOCUS or SYNDROME | AMINO ACID CHANGE | NUCLEOTIDE CHANGE | EXON | ETHNICITY (Number of families) | REFERENCES |
| TECTA | DFNA8/12 | C1057S | 3170T>A | exon 10 | Swedish (1) | Balciuniene 1999 |
| C1619S | 4857G>C | exon 14 | French (1) | Alloisio 1999 | ||
| L1820F | 5725C>T | exon 17 | Belgian (1) | Verhoeven 1998 | ||
| G1824D | 5738G>A | exon 17 | Belgian (1) | Verhoeven 1998 | ||
| Y1870C | 5876A>G | exon 18 | Austrian (1) | Verhoeven 1998 | ||
| R2021H | 6063G>A | exon 20 | Japanese (1) | Iwasaki 2002 | ||
| DFNB21 | IVS9 G>A | intron 9 | Lebanese (1) | Mustapha 1999 |