#	Chain	Domain ID	Range	Family	Classification
1	A	e7xcnA1	A:2-495	MTTB	2002 → 2002.1 → 2002.1.1
2	B	e7xcnB1	B:2-495	MTTB	2002 → 2002.1 → 2002.1.1
3	C	e7xcnC1	C:2-495	MTTB	2002 → 2002.1 → 2002.1.1
4	D	e7xcnD1	D:2-495	MTTB	2002 → 2002.1 → 2002.1.1
5	E	e7xcnE1	E:2-495	MTTB	2002 → 2002.1 → 2002.1.1
6	F	e7xcnF1	F:2-495	MTTB	2002 → 2002.1 → 2002.1.1
7	M	e7xcnM1	M:92-216	B12-binding	2007 → 2007.1 → 2007.1.3
8	M	e7xcnM2	M:3-91	B12-binding_2	4995 → 4995.1 → 4995.1.1
9	N	e7xcnN1	N:90-215	B12-binding	2007 → 2007.1 → 2007.1.3
10	N	e7xcnN2	N:2-89	B12-binding_2	4995 → 4995.1 → 4995.1.1
11	O	e7xcnO1	O:92-216	B12-binding	2007 → 2007.1 → 2007.1.3
12	O	e7xcnO2	O:3-91	B12-binding_2	4995 → 4995.1 → 4995.1.1
13	P	e7xcnP1	P:92-216	B12-binding	2007 → 2007.1 → 2007.1.3
14	P	e7xcnP2	P:2-91	B12-binding_2	4995 → 4995.1 → 4995.1.1
15	Q	e7xcnQ1	Q:90-215	B12-binding	2007 → 2007.1 → 2007.1.3
16	Q	e7xcnQ2	Q:3-89	B12-binding_2	4995 → 4995.1 → 4995.1.1
17	R	e7xcnR1	R:3-91	B12-binding_2	4995 → 4995.1 → 4995.1.1
18	R	e7xcnR2	R:92-216	B12-binding	2007 → 2007.1 → 2007.1.3

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