#	Chain	Domain ID	Range	Family	Classification
1	A	e5nh3A1	A:25-118	Activin_recp	382 → 382.1 → 382.1.1
2	B	e5nh3B1	B:25-119	Activin_recp	382 → 382.1 → 382.1.1
3	H	e5nh3H1	H:1-114	V-set	11 → 11.1 → 11.1.1
4	I	e5nh3I1	I:1-114	V-set	11 → 11.1 → 11.1.1
5	L	e5nh3L1	L:2-112	V-set	11 → 11.1 → 11.1.1
6	M	e5nh3M1	M:2-112	V-set	11 → 11.1 → 11.1.1

ECOD domains (colored by index)Unclassified protein regionsNucleic acids (RNA/DNA)Ligands/cofactors