| UniProtKB/Swiss-Prot |
| P36896, ACV1B_HUMAN; | Q61271, ACV1B_MOUSE; | P80202, ACV1B_RAT; |
| Q8NER5, ACV1C_HUMAN; | Q8K348, ACV1C_MOUSE; | P70539, ACV1C_RAT; |
| P37023, ACVL1_HUMAN; | Q61288, ACVL1_MOUSE; | Q5RAN0, ACVL1_PONAB; |
| P80203, ACVL1_RAT; | Q28041, ACVR1_BOVIN; | Q90ZK6, ACVR1_CHICK; |
| Q04771, ACVR1_HUMAN; | P37172, ACVR1_MOUSE; | P80201, ACVR1_RAT; |
| Q16671, AMHR2_HUMAN; | Q8K592, AMHR2_MOUSE; | Q28616, AMHR2_RABIT; |
| Q62893, AMHR2_RAT; | Q28043, AVR2A_BOVIN; | Q90669, AVR2A_CHICK; |
| P27037, AVR2A_HUMAN; | P27038, AVR2A_MOUSE; | P38444, AVR2A_RAT; |
| Q28560, AVR2A_SHEEP; | P27039, AVR2A_XENLA; | Q95126, AVR2B_BOVIN; |
| Q90670, AVR2B_CHICK; | Q13705, AVR2B_HUMAN; | P27040, AVR2B_MOUSE; |
| Q66T47, AVR2B_PIG; | P38445, AVR2B_RAT; | P27041, AVR2B_XENLA; |
| Q13873, BMPR2_HUMAN; | O35607, BMPR2_MOUSE; | P36894, BMR1A_HUMAN; |
| P36895, BMR1A_MOUSE; | Q78EA7, BMR1A_RAT; | Q05438, BMR1B_CHICK; |
| O00238, BMR1B_HUMAN; | P36898, BMR1B_MOUSE; | P20792, DAF1_CAEEL; |
| P50488, DAF4_CAEEL; | Q09488, SMA6_CAEEL; | O46680, TGFR1_BOVIN; |
| P36897, TGFR1_HUMAN; | Q64729, TGFR1_MOUSE; | Q5CD18, TGFR1_PIG; |
| P80204, TGFR1_RAT; | Q90999, TGFR2_CHICK; | P37173, TGFR2_HUMAN; |
| Q62312, TGFR2_MOUSE; | P38551, TGFR2_PIG; | P38438, TGFR2_RAT; |
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