Family Build (I value*) | Family ID | Annotation** | # Members |
| 1.2 | 142 | mTERF | 94 |
| 2 | 24617 | mTERF | 8 |
| 5 | 59069 | mTERF | 7 |
| 1.1 | 101517 | Mitochodrial transcription termination factor-related | 90 |
| 2 | 120181 | Mitochodrial transcription termination factor-related | 10 |
| 5 | 130974 | Mitochodrial transcription termination factor-related | 8 |
*i value: controls inflation, a process to dissipate family clusters. At high i value, genes tend to be separated into different families.
**Annotation: the most common InterPro annotation(s) of the Arabidopsis members in the family.