#	Chain	Domain ID	Range	Family	Classification
1	A	e4ffvA1	A:38-505	DPPIV_N,DPPIV_rep	5 → 5.1 → 5.1.5
2	A	e4ffvA2	A:506-763	Peptidase_S9	7579 → 7579.1 → 7579.1.1
3	B	e4ffvB1	B:39-501	DPPIV_N,DPPIV_rep	5 → 5.1 → 5.1.5
4	B	e4ffvB2	B:502-767	Peptidase_S9	7579 → 7579.1 → 7579.1.1
5	C	e4ffvC1	C:1-106	V-set	11 → 11.1 → 11.1.1
6	C	e4ffvC2	C:107-210	C1-set	11 → 11.1 → 11.1.1
7	D	e4ffvD1	D:1-117	V-set	11 → 11.1 → 11.1.1
8	D	e4ffvD2	D:118-217	C1-set	11 → 11.1 → 11.1.1
9	H	e4ffvH1	H:1-117	V-set	11 → 11.1 → 11.1.1
10	H	e4ffvH2	H:118-209	C1-set	11 → 11.1 → 11.1.1
11	L	e4ffvL1	L:1-107	V-set	11 → 11.1 → 11.1.1
12	L	e4ffvL2	L:108-207	C1-set	11 → 11.1 → 11.1.1

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