ATM variants have been reported in the breast cancer patients in different regions and ethnic groups of America and Canada

Regions/ethnics	Variants	References
African American	146C>G, 2614C>T, 378T>A, 2119T>C, 2572T>C, 3161C>G, 3383A>G, 5557G>A, 5558A>T, 2685A>G, 1254A>G, 1541G>A, 4939C>T, 2289T>A, 4279G>A	^121-123
Latina	378T>A, 2614C>T, 2119T>C, 2572T>C, 3161C>G, 4258C>T, 5557G>A	¹²¹
Japanese	2572T>C, 5557G>A	¹²¹
Caucasian	146C>G, 378T>A, 2119T>C, 2572T>C, 4258C>T, 3161C>G, 5557G>A, 5558A>T, 5932G>T	^{121, 123, 124}
Hispanic American	5557G>A, 5558A>T, 3161C>G, 146C>G	¹²³
Asian American	5558A>T	¹²³
South American	378T>A, 5557G>A, IVS4+36insAA, IVS17-56G>A, IVS24-9delT, IVS25-12insA, IVS38-15G>C, IVS38-8T>C, IVS47-65G>C, IVS48-69insATT	¹²⁵
Chile	2572T>C, 5558A>T, 2082T>C, 2256A>G, 378T>A, 1744T>C, 2119T>C, 5557 G>A, IVS4+36insAA, IVS17-56G>A, IVS22-77T>C, IVS24-9delT, IVS25-13insA, IVS25-35T>A, IVS38-8T>C, IVS25-12insA, IVS38-8T>C, IVS47-65G>C, IVS48-69insATT, IVS62+8A>C, IVS64+51delT, IVS38-15G>C	^{125, 126}
Mexico	5557G>A, IVS24-9delT, IVS38-8T>C	¹²⁷
US (without considering ethnicity)	370A>G, 609C>A, 4138C>T, 4400A>G, 2362A>C, 7397C>T, 6088A>G, 5793T>C, 735C>T, 1176C>G, 4148C>T, 5071A>C, 8734A>G, 9031A>G, 3802delG, 6997dupA, 7831-7835del, 7271T>G, 146C>G, 2119T>C, 2572T>C, 4578C>T, 8473C> A8535G>A, IVS54+8G>T, IVS10-6T>G, 544G>C, 735C>T, 2193C>T, 4066A>G, 6332A>G, 7291A>G, 8071C>T, 2289T>A, 4307A>G, 4388T>G, 4424A>G, 2685A>G, 1541G>A, 2805G>C, 5793T>C, 6088A>G, 6919C>T, 6988C>G, 8000T>C, 1744T>C, 1880T>G, 2614C>T, 3383A>G, 3630G>A, 4138C>T, 7271T>G, 378T>A, 735C>T, 2119T>C, 2572T>C, 3161C>G, 4258C>T, 4578C>T, 5557G>A, 5558A>T, 1899-55T>G, 3285-10delT, 5497-8T>C, 5762+27G>A, 6348-54T>C, 8786+8A>C, IVS4+35insAA, IVS24-9delT, IVS25-12insAA, IVS28+5G>T, IVS7-48T>G, IVS8+38T>C, IVS9+25T>G, IVS15-68T>C, IVS16+78G>A, IVS21+19insA, IVS25-15insT, IVS25-15delT, IVS33-20A>G, IVS43-15T>C, IVS45+30delT, IVS56+30insT, IVS62+8A>C, IVS7+18T>C, IVS16+22A>C, IVS16+34A>C, IVS19-17G>T, IVS25+32delCAT, IVS38-66T>G, IVS38-112G>A, IVS38-15G>C, IVS38-8T>C, IVS62+8A>C	^{65, 115, 128-135}
Canada	7271T>G	¹³²