Table 1.
Global distribution of connexin 30 (GJB6) gene variants.
| Country/Territory | Number of Alleles * | Protein Change | Nucleotide Change | Reference Number | Clinical Significance | Reference | |||
|---|---|---|---|---|---|---|---|---|---|
| Intervar | Varsome | ClinVar | Verdict | ||||||
| Taiwan | 1/520 | p.A40V | c.119C > T | rs780320724 | Likely Pathogenic | Likely Pathogenic | Pathogenic | Pathogenic | [23] |
| Malaysia | 3/NA | - | 366delT | - | - | - | - | - | [26] |
| Germany | 1/376 | - | 682insA | - | - | - | - | - | [27] |
| Uganda | 2/230 | p.N113K | c.339T > A | rs143766955 | Benign | Likely Benign | Benign | Benign | [28] |
| Uganda | 1/230 | c.476A > G | p.N159S | rs35277762 | Benign | Likely Benign | Benign | Benign | [28] |
| Malaysia | 2 | p.E101K | c.301G > A | rs571454176 | Likely Benign | Uncertain Significance | Uncertain Significance | Uncertain Significance | [26] |
| Malaysia | 1/NA | p.A148D | c.443_444 delC AinsAC | - | - | Uncertain Significance | - | Uncertain Significance | [26] |
| Malaysia | 1/NA | p.Q124H | - | - | Uncertain Significance | Uncertain Significance | - | Uncertain Significance | [26] |
| Slovenia | 1/144 | p.M203V | c.607A > G | rs200674715 | Uncertain Significance | Likely Benign | Benign | Benign | [29] |
| Germany | 1/376 | [27] | |||||||
| Korea | 1/394 | p.I248V | c.742A > G | rs747371119 | Uncertain Significance | Uncertain Significance | Uncertain Significance | Uncertain Significance | [30] |
| Qatar | 1/NA | p.P70L | c.209C > T | rs727505123 | Uncertain Significance | Uncertain Significance | Uncertain Significance | Uncertain Significance | [31] |
| Korea | 1/394 | p.P87P | c.261A > T | rs777309137 | Likely Benign | Likely Benign | - | Benign | [30] |
| Germany | 6/396 | p.T5M | c.14C > T | rs104894414 | Likely Pathogenic | Uncertain Significance | Pathogenic | Pathogenic | [24] |
| Malaysia | 1/NA | p.R32Q | c.95G > A | rs766604251 | Uncertain Significance | Uncertain Significance | - | Uncertain Significance | [26] |
| Germany | 1/376 | p.V190A | c.569 T > C | rs780513857 | Uncertain Significance | Uncertain Significance | Uncertain Significance | Uncertain Significance | [26,27] |
| Malaysia | 1/NA | p.I145H | c.433_434 delA TinsCA | - | Uncertain Significance | - | Uncertain Significance | [26] | |
* The numerators in this column represent the number of mutated alleles, and the denominators the total number of screened alleles. NA, not applicable (the authors were not clear on the total number of alleles they have screened), InterVar, VarSome, and ClinVar are databases to assess the clinical significance of the variants.