#	Chain	Domain ID	Range	Family	Classification
1	B	e7nfeB1	B:254-534	Ku,Ku_C	60 → 60.1 → 60.1.2
2	B	e7nfeB2	B:32-253	Ku_N	2006 → 2006.1 → 2006.1.6
3	C	e7nfeC1	C:241-554	Ku,Ku_C	60 → 60.1 → 60.1.2
4	C	e7nfeC2	C:6-167,C:196-240	Ku_N	2006 → 2006.1 → 2006.1.6
5	F	e7nfeF1	F:127-217	XLF_CC	3939 → 3939.1 → 3939.1.1
6	F	e7nfeF2	F:2-49,F:92-126	XLF	719 → 719.1 → 719.1.1
7	F	e7nfeF3	F:50-91	101.1.12.0	101 → 101.1 → 101.1.12
8	G	e7nfeG1	G:127-224	XLF_CC	3939 → 3939.1 → 3939.1.1
9	G	e7nfeG2	G:2-49,G:92-126	XLF	719 → 719.1 → 719.1.1
10	G	e7nfeG3	G:50-91	101.1.12.0	101 → 101.1 → 101.1.12
11	H	e7nfeH1	H:118-201	XRCC4_CC	3939 → 3939.1 → 3939.1.1
12	H	e7nfeH2	H:1-49,H:81-117	XRCC4	719 → 719.1 → 719.1.1
13	H	e7nfeH3	H:50-80	101.1.12.0	101 → 101.1 → 101.1.12
14	I	e7nfeI1	I:118-201	XRCC4_CC	3939 → 3939.1 → 3939.1.1
15	I	e7nfeI2	I:1-49,I:81-117	XRCC4	719 → 719.1 → 719.1.1
16	I	e7nfeI3	I:50-80	101.1.12.0	101 → 101.1 → 101.1.12
17	J	e7nfeJ1	J:654-759	BRCT	7568 → 7568.1 → 7568.1.1
18	J	e7nfeJ2	J:785-911	BRCT	7568 → 7568.1 → 7568.1.1

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