#	Chain	Domain ID	Range	Family	Classification
1	A	e4hfuA1	A:9-322	Hemagglutinin	10 → 10.5 → 10.5.1
2	B	e4hfuB1	B:1-174	10.5.1.0	10 → 10.5 → 10.5.1
3	H	e4hfuH3	H:114-215	C1-set	11 → 11.1 → 11.1.1
4	H	e4hfuH4	H:2-113	V-set	11 → 11.1 → 11.1.1
5	L	e4hfuL1	L:1-107	V-set	11 → 11.1 → 11.1.1
6	L	e4hfuL2	L:108-212	C1-set	11 → 11.1 → 11.1.1

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