Family Build (I value*) | Family ID | Annotation** | # Members |
| 1.2 | 3701 | Sperm/putr-bndng SBP_bac_1 Tom22 | 4 |
| 2 | 26912 | Sperm/putr-bndng SBP_bac_1 Tom22 | 4 |
| 5 | 94349 | | 1 |
| 1.1 | 104726 | Bacterial periplasmic spermidine/putrescine-binding protein - Molecular Function: transporter activity (GO:0005215) - Biological Process: transport (GO:0006810) - Cellular Component: periplasmic space (sensu Proteobacteria) (GO:0030288) | 3 |
| 2 | 124302 | Bacterial periplasmic spermidine/putrescine-binding protein - Molecular Function: transporter activity (GO:0005215) - Biological Process: transport (GO:0006810) - Cellular Component: periplasmic space (sensu Proteobacteria) (GO:0030288) | 3 |
*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.