| Catalog ID | Description | Sex | Age | Race | Affected | Family Member | Relationship to Proband | Cell Type | Family |
| GM15815 | NIJMEGEN BREAKAGE SYNDROME | Female | 34 YR | White | No | 4 | mother | B-Lymphocyte | 1838 |
| GM15816 | NIJMEGEN BREAKAGE SYNDROME | Male | 49 YR | White | No | 5 | father | B-Lymphocyte | 1838 |
| GM15817 | NIJMEGEN BREAKAGE SYNDROME | Female | 8 YR | White | No | 3 | sister | B-Lymphocyte | 1838 |
| GM15818 | NIJMEGEN BREAKAGE SYNDROME | Female | 6 YR | White | Yes | 1 | proband | B-Lymphocyte | 1838 |
| GM15819 | NIJMEGEN BREAKAGE SYNDROME | Male | 1 YR | White | Yes | 2 | brother | B-Lymphocyte | 1838 |