| Gene | Description | Domains | Gene lists |
|---|---|---|---|
| Spis_XP_022784934_1 | histidine triad nucleotide binding protein 1 | HIT | — |
| Spis_XP_022808609_1 | fragile histidine triad diadenosine triphosphatase | HIT | — |
| Spis_XP_022809047_1 | histidine triad nucleotide binding protein 1 | HIT | — |