| Protein | Synonyms | Taxonomy |
|---|---|---|
| Activin receptor type-1B | EC 2.7.11.30; Activin receptor type IB; ACTR-IB; Activin receptor-like kinase 4; ALK-4; Serine/threonine-protein kinase receptor R2; SKR2 | Homo sapiens (human) |
| Activin receptor type-2B | EC 2.7.11.30; Activin receptor type IIB; ACTR-IIB | Homo sapiens (human) |
| Activin receptor type-1C | EC 2.7.11.30; Activin receptor type IC; ACTR-IC; Activin receptor-like kinase 7; ALK-7 | Homo sapiens (human) |
| Nodal homolog | Homo sapiens (human) |
| Compound | Description |
|---|