#	Chain	Domain ID	Range	Family	Classification
1	A	e6nknA1	A:1-514	COX1	5038 → 5038.1 → 5038.1.1
2	B	e6nknB1	B:91-227	COX2	3156 → 3156.1 → 3156.1.1
3	B	e6nknB2	B:1-90	COX2_TM	5040 → 5040.1 → 5040.1.1
4	C	e6nknC1	C:3-261	COX3	5039 → 5039.1 → 5039.1.1
5	D	e6nknD1	D:4-147	COX4	5003 → 5003.1 → 5003.1.1
6	E	e6nknE1	E:5-109	COX5A	109 → 109.7 → 109.7.1
7	F	e6nknF1	F:2-97	COX5B	375 → 375.1 → 375.1.8
8	G	e6nknG1	G:1-84	COX6A	5004 → 5004.1 → 5004.1.1
9	H	e6nknH1	H:8-85	COX6B	540 → 540.1 → 540.1.1
10	I	e6nknI1	I:1-73	COX6C	5005 → 5005.1 → 5005.1.1
11	J	e6nknJ1	J:1-58	COX7a	5006 → 5006.1 → 5006.1.1
12	K	e6nknK1	K:6-54	COX7B	5007 → 5007.1 → 5007.1.1
13	L	e6nknL1	L:2-47	COX7C	5008 → 5008.1 → 5008.1.1
14	M	e6nknM1	M:1-43	COX8	5009 → 5009.1 → 5009.1.1
15	N	e6nknN1	N:1-514	COX1	5038 → 5038.1 → 5038.1.1
16	O	e6nknO1	O:91-227	COX2	3156 → 3156.1 → 3156.1.1
17	O	e6nknO2	O:1-90	COX2_TM	5040 → 5040.1 → 5040.1.1
18	P	e6nknP1	P:3-261	COX3	5039 → 5039.1 → 5039.1.1
19	Q	e6nknQ1	Q:9-147	COX4	5003 → 5003.1 → 5003.1.1
20	R	e6nknR1	R:5-109	COX5A	109 → 109.7 → 109.7.1
21	S	e6nknS1	S:3-96	COX5B	375 → 375.1 → 375.1.8
22	T	e6nknT1	T:1-84	COX6A	5004 → 5004.1 → 5004.1.1
23	U	e6nknU1	U:7-85	COX6B	540 → 540.1 → 540.1.1
24	V	e6nknV1	V:1-73	COX6C	5005 → 5005.1 → 5005.1.1
25	W	e6nknW1	W:1-58	COX7a	5006 → 5006.1 → 5006.1.1
26	X	e6nknX1	X:6-54	COX7B	5007 → 5007.1 → 5007.1.1
27	Y	e6nknY1	Y:2-47	COX7C	5008 → 5008.1 → 5008.1.1
28	Z	e6nknZ1	Z:1-43	COX8	5009 → 5009.1 → 5009.1.1

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