#	Chain	Domain ID	Range	Family	Classification
1	B	e1ca0B1	B:1-131	Trypsin	1 → 1.1 → 1.1.17
2	B-C	e1ca0.6	B:2-131,C:1-97	1.1.5.0	1 → 1.1 → 1.1.5
3	C	e1ca0C1	C:1-97	Trypsin	1 → 1.1 → 1.1.17
4	D	e1ca0D1	D:3-56	Kunitz_BPTI	384 → 384.1 → 384.1.1
5	G	e1ca0G1	G:1-131	Trypsin	1 → 1.1 → 1.1.17
6	G-H	e1ca0.5	G:2-131,H:1-97	1.1.5.0	1 → 1.1 → 1.1.5
7	H	e1ca0H1	H:1-97	Trypsin	1 → 1.1 → 1.1.17
8	I	e1ca0I1	I:3-56	Kunitz_BPTI	384 → 384.1 → 384.1.1

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