#	Chain	Domain ID	Range	Family	Classification
1	A	e4m52A1	A:342-464	Pyr_redox_dim	244 → 244.2 → 244.2.1
2	A	e4m52A2	A:150-266	Pyr_redox	2003 → 2003.1 → 2003.1.2
3	A	e4m52A3	A:0-149,A:267-341	Pyr_redox_2+FAD_oxidored	2003 → 2003.1 → 2003.1.2
4	B	e4m52B1	B:0-149,B:267-341	Pyr_redox_2+FAD_oxidored	2003 → 2003.1 → 2003.1.2
5	B	e4m52B2	B:150-266	Pyr_redox	2003 → 2003.1 → 2003.1.2
6	B	e4m52B3	B:342-464	Pyr_redox_dim	244 → 244.2 → 244.2.1
7	C	e4m52C4	C:154-268	Pyr_redox_2	2003 → 2003.1 → 2003.1.2
8	C	e4m52C5	C:341-464	Pyr_redox_dim	244 → 244.2 → 244.2.1
9	C	e4m52C6	C:0-158,C:269-340	Pyr_redox_2+FAD_oxidored	2003 → 2003.1 → 2003.1.2
10	D	e4m52D4	D:154-268	Pyr_redox_2	2003 → 2003.1 → 2003.1.2
11	D	e4m52D5	D:341-464	Pyr_redox_dim	244 → 244.2 → 244.2.1
12	D	e4m52D6	D:0-158,D:269-340	Pyr_redox_2+FAD_oxidored	2003 → 2003.1 → 2003.1.2

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