#	Chain	Domain ID	Range	Family	Classification
1	A	e1r27A1	A:221-581	Molybdopterin	2003 → 2003.2 → 2003.2.1
2	A	e1r27A2	A:106-220,A:582-1074	Molybdopterin, PF28599	2003 → 2003.2 → 2003.2.1
3	A	e1r27A3	A:1075-1246	Molydop_binding	1 → 1.1 → 1.1.2
4	A	e1r27A4	A:29-105	Molybdop_Fe4S4	1001 → 1001.1 → 1001.1.1
5	B	e1r27B1	B:184-243	Fer4_11	205 → 205.1 → 205.1.1
6	B	e1r27B2	B:1-183,B:244-465	Fer4_11,Nitr_red_bet_C	205 → 205.1 → 205.1.1
7	C	e1r27C1	C:221-581	Molybdopterin	2003 → 2003.2 → 2003.2.1
8	C	e1r27C2	C:106-220,C:582-1074	Molybdopterin, PF28599	2003 → 2003.2 → 2003.2.1
9	C	e1r27C3	C:1075-1246	Molydop_binding	1 → 1.1 → 1.1.2
10	C	e1r27C4	C:29-105	Molybdop_Fe4S4	1001 → 1001.1 → 1001.1.1
11	D	e1r27D1	D:184-243	Fer4_11	205 → 205.1 → 205.1.1
12	D	e1r27D2	D:1-183,D:244-465	Fer4_11,Nitr_red_bet_C	205 → 205.1 → 205.1.1

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