| Catalog ID | Diagnosis | Cell Type | Race | Age At Sampling | Sex | Affected | Family |
| GM28364 | DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 42; DEE42 | B-Lymphocyte | White | 6 YR | Female | Yes | 3555 |
| GM28545 | DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 42; DEE42 | B-Lymphocyte | White | 6 YR | Female | Yes | NIGMS00008 |
| GM28546 | DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 42; DEE42 | B-Lymphocyte | White | 35 YR | Female | No | NIGMS00008 |
| GM28365 | DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 42; DEE42 | B-Lymphocyte | White | 41 YR | Female | No | 3555 |
| GM28366 | DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 42; DEE42 | B-Lymphocyte | White | 43 YR | Male | No | 3555 |
| GM28544 | DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 42; DEE42 | B-Lymphocyte | White | 47 YR | Male | No | NIGMS00008 |