| Gene | Description | Domains | Gene lists |
|---|---|---|---|
| Fam198a | — | FAM198, Fam20C, FJX1_middle | — |
| Fam198b | — | CCC_C_1st_pro, FAM198, Fam20C, FJX1_middle | — |
| Fam20a | — | FAM198, Fam20C, FJX1_middle, PI3_PI4_kinase | — |
| Fam20b | — | FAM198, Fam20C, FJX1_middle | — |
| Fam20c | — | FAM198, Fam20C, FJX1_middle, NLRX1_C, Usp38-like_N | — |
| Fjx1 | — | Abhydrolase_1, FAM198, Fam20C, FJX1_middle, Hyd_WA | — |