| Country | BRCA1 mutations | BRCA2 mutations | Founder mutations |
| Switzerland | G4956A [161] | 7253delAA [161] | — | Britain | 4184del4 [78–80], 185DelAG, intron 5 splice, 5382 Ins C [80, 162], C4446T, 3875del4, 2800delAA [27], 2080delA [80], 2594delC [79] | 6503delTT, 9303ins31 [80] | 2594delC [welsh founder [79], 2800delAA [163], 1294del40 [162] 2157delG [76] | Germany | 655A>G [164], 4282delAG [165, 166], 300T>G, 5382insC, 4184del4bp [100], c.3700_3704del5( exon 17 and 22 del Exon 13dup [71] | 3034del4bp, 5910C3G, 6676insTA [100] | 2457C3T, 5382insC, 300T3G [100] | France | French-Canadian: 4446C>T, 2953delGTAinsC, R1443X, 3875delGTCT [76, 167–169] French: 3600del11, 4184del4, G1710X [170] Exons 8–13 del Exons 3–8 and 18–20 dup [170, 171] | French-Canadian: 6085G>T, 8765delAG, 3398delAAAAG, 6503delTT [76, 168, 169]
| 3398delAAAAG [73] | Italy
| c.3228_3229delAG, c.3285delA, c.1377_1378insA c.5062_5064delTGT Exons 17, 9–19, 18–19, 1a-2, 16–20 del 4843delC [59] | 1499insA [21], 7525_7526insT, 6174delT [20] c.289G>T, c.2950G>T c.7963C>T and c.8878C>T [61, 62] | c.1377_1378insA and c.5062_5064delTGT Exon 17 del, 4843delC [20], 1499insA [21, 172] | Belgium | IVS5+3A>G [173], E1221X, 2478–2479insG [174] | IVS6þ1G4A, 6503-6504delTT, 9132delC [174] | IVS5+3A>G [173] | Spain | 330A>G, c.187_188delAG, c.5385insC, c.5242C>A [68] c.66_68delAG, c.5123C>A, c.1961delA, c.3770_3771delAG, and c.5152+5G>A [67] Exons 3–5 del [66] | 9254del5, c.9254_9258delATCAT, c.3492_3493insT, 9475A>G [68] c.9026_9030delATCAT, c.3264insT and c.8978_8991del14 [67] | 330A>G, 9254del5 6857_6858del [65] Exons 3–5 del [66] | Portugal | — | c.156_157insAlu [70] | c.156_157insAlu [70] | Poland | 4153delA, 5382insC, 300T>G, 185delAG, 3819del5, c.190T>C, 2991del5 [87, 88],C5370T, 3875del4 [90] | 6238ins2del21 10323delCins11 8876delC [87]
| 5382insC and 300T>G [87, 88] |
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