| Gene | Description | Domains | Gene lists |
|---|---|---|---|
| Dkk1 | — | Dickkopf_N, DIKK1-2-4_C-subdom1, DIKK1-2-4_C-subdom2, Toxin_12, Toxin_19 | — |
| Dkk2 | — | Dickkopf_N, DIKK1-2-4_C-subdom1, DIKK1-2-4_C-subdom2, DUF4501 | — |
| Dkk3 | — | Conotoxin_I2, Dickkopf_N, DIKK1-2-4_C-subdom2, DUF7107, Hen1_Lam_C, KefB_C, Lipoprotein_2, UPF0506 | — |
| Dkk4 | — | C45G9_2nd, Dickkopf_N, DIKK1-2-4_C-subdom1, DIKK1-2-4_C-subdom2, DX, Prohormone3_N, Prokineticin, Toxin_12 | — |
| P2rx3 | — | CedA1, Dickkopf_N, P2X_receptor | Ion channels |
| Wap | — | Conotoxin_I2, Dickkopf_N, DUF7107, WAP | — |