#	Chain	Domain ID	Range	Family	Classification
1	A	e8ud3A1	A:1-213	Coronavirus replicase NSP15, middle domain / Coronavirus replicase NSP15, N-terminal oligomerisation	2003 → 2003.1 → 2003.1.5
2	A	e8ud3A2	A:214-354	CoV_NSP15_C	372 → 372.2 → 372.2.1
3	B	e8ud3B1	B:1-213	Coronavirus replicase NSP15, middle domain / Coronavirus replicase NSP15, N-terminal oligomerisation	2003 → 2003.1 → 2003.1.5
4	B	e8ud3B2	B:214-354	CoV_NSP15_C	372 → 372.2 → 372.2.1
5	C	e8ud3C1	C:1-213	Coronavirus replicase NSP15, middle domain / Coronavirus replicase NSP15, N-terminal oligomerisation	2003 → 2003.1 → 2003.1.5
6	C	e8ud3C2	C:214-354	CoV_NSP15_C	372 → 372.2 → 372.2.1
7	D	e8ud3D1	D:1-213	Coronavirus replicase NSP15, middle domain / Coronavirus replicase NSP15, N-terminal oligomerisation	2003 → 2003.1 → 2003.1.5
8	D	e8ud3D2	D:214-354	CoV_NSP15_C	372 → 372.2 → 372.2.1
9	E	e8ud3E1	E:1-213	Coronavirus replicase NSP15, middle domain / Coronavirus replicase NSP15, N-terminal oligomerisation	2003 → 2003.1 → 2003.1.5
10	E	e8ud3E2	E:214-354	CoV_NSP15_C	372 → 372.2 → 372.2.1
11	F	e8ud3F1	F:1-213	Coronavirus replicase NSP15, middle domain / Coronavirus replicase NSP15, N-terminal oligomerisation	2003 → 2003.1 → 2003.1.5
12	F	e8ud3F2	F:214-354	CoV_NSP15_C	372 → 372.2 → 372.2.1

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