#	Chain	Domain ID	Range	Family	Classification
1	B	e7arcB1	B:11-164	Oxidored_q6	2007 → 2007.1 → 2007.1.3
2	C	e7arcC1	C:24-217	Complex1_30kDa	4272 → 4272.1 → 4272.1.1
3	D	e7arcD1	D:1-50,D:365-395	Complex1_49kDa	244 → 244.4 → 244.4.1
4	D	e7arcD2	D:51-93,D:292-364	Complex1_49kDa	244 → 244.4 → 244.4.1
5	D	e7arcD3	D:94-291	Complex1_49kDa	4025 → 4025.1 → 4025.1.1
6	E	e7arcE1	E:39-135	2Fe-2S_thioredx	3697 → 3697.1 → 3697.1.1
7	E	e7arcE2	E:136-273	2Fe-2S_thioredx	2485 → 2485.1 → 2485.1.1
8	F	e7arcF1	F:35-281	Complex1_51K	4335 → 4335.1 → 4335.1.1
9	F	e7arcF2	F:368-464	NADH_4Fe-4S	633 → 633.11 → 633.11.1
10	F	e7arcF3	F:282-367	SLBB_2	221 → 221.1 → 221.1.4
11	G	e7arcG1	G:313-397,G:526-720	Molybdopterin,NADH_dhqG_C	2003 → 2003.2 → 2003.2.1
12	G	e7arcG2	G:388-525	Molybdopterin	2003 → 2003.2 → 2003.2.1
13	G	e7arcG3	G:39-116	Fer2_4	221 → 221.1 → 221.1.1
14	G	e7arcG4	G:252-312	NDSU1_4Fe-4S	1001 → 1001.1 → 1001.1.1
15	G	e7arcG5	G:117-171	NADH-G_4Fe-4S_3	5100 → 5100.1 → 5100.1.1
16	G	e7arcG6	G:172-251	Nqo3_Fer4	205 → 205.1 → 205.1.1
17	I	e7arcI1	I:59-229	Fer4+Fer4_7	205 → 205.1 → 205.1.1
18	P	e7arcP1	P:2-348	Epimerase	2003 → 2003.1 → 2003.1.1
19	q	e7arcq01	q:47-155	NDUFA12	1129 → 1129.1 → 1129.1.1
20	Q	e7arcQ1	Q:50-185	NDUS4	3203 → 3203.1 → 3203.1.1
21	R	e7arcR01	R:53-132	375.1.8.0	375 → 375.1 → 375.1.8
22	S	e7arcS1	S:2-96	L51_S25_CI-B8	2485 → 2485.1 → 2485.1.1
23	U	e7arcU1	U:39-122	PP-binding	132 → 132.1 → 132.1.1
24	V	e7arcV01	V:42-150	ETC_C1_NDUFA5	6004 → 6004.1 → 6004.1.1
25	W	e7arcW1	W:1-137	1128.1.1.0	1128 → 1128.1 → 1128.1.1

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