Annotations: 7XSW

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F [auth C]	ECH_1	e7xswC1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: ECH_1	ECOD (v294.1)
C [auth R]	ECH_1	e7xswR1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: ECH_1	ECOD (v294.1)
E [auth B]	ECH_1	e7xswB1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: ECH_1	ECOD (v294.1)
B [auth L]	ECH_1	e7xswL1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: ECH_1	ECOD (v294.1)
D [auth A]	ECH_1	e7xswA1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: ECH_1	ECOD (v294.1)
A [auth H]	ECH_1	e7xswH1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: ECH_1	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E [auth B]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D [auth A]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
A [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L], E [auth B]	Light Chain	IGKV3	Kappa	spike protein s1	SAbDab (2026-03-27)
A [auth H], D [auth A]	Heavy Chain	IGHV1	-	spike protein s1	SAbDab (2026-03-27)

Chain	Name	Target	Provenance Source
B [auth L], E [auth B]	Beludavimab	SARS-CoV-2 Spike RBD	Therapeutic SAbDab (2026-03-27)
A [auth H], D [auth A]	Sotrovimab	SARS-CoV-2 Spike RBD	Therapeutic SAbDab (2026-03-27)