| Nomenclature | activin A receptor type II-like 1 | activin A receptor, type I | bone morphogenetic protein receptor, type IA | activin A receptor, type IB | transforming growth factor, beta receptor 1 | bone morphogenetic protein receptor, type IB | activin A receptor, type IC |
| Common abbreviation | ALK1 | ALK2 | BMPR1A | ALK4 | TGFBR1 | BMPR1B | ALK7 |
| HGNC, UniProt | ACVRL1, P37023 | ACVR1, Q04771 | BMPR1A, P36894 | ACVR1B, P36896 | TGFBR1, P36897 | BMPR1B, O00238 | ACVR1C, Q8NER5 |
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