Annotations: 5XHF

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C	Ku_N	e5xhfC1	A: beta barrels	X: Protein kinase/SAICAR synthase/ATP-grasp	H: Protein kinase/SAICAR synthase/ATP-grasp	T: Undecaprenyl diphosphate synthase	F: Ku_N	ECOD (v294.2)
A	ATP-synt_VA_C	e5xhfA1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: ATP-synt_VA_C	ECOD (v294.2)
D	ATP-synt_VA_C	e5xhfD1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: ATP-synt_VA_C	ECOD (v294.2)
B	Ku_N	e5xhfB1	A: beta barrels	X: Protein kinase/SAICAR synthase/ATP-grasp	H: Protein kinase/SAICAR synthase/ATP-grasp	T: Undecaprenyl diphosphate synthase	F: Ku_N	ECOD (v294.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A, C	Light Chain	IGKV1	Kappa	-	SAbDab (2026-05-08)
B, D	Heavy Chain	IGHV3	-	-	SAbDab (2026-05-08)

Chain	Name	Target	Provenance Source
A, C	Coprelotamab	ERBB2/CD340/HER2, CD3E, TNFRSF9/CD137/4-1BB, SIRPA	Therapeutic SAbDab (2026-05-08)
B, D	Coprelotamab	ERBB2/CD340/HER2, TNFRSF9/CD137/4-1BB, SIRPA, CD3E	Therapeutic SAbDab (2026-05-08)

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

5XHF | pdb_00005xhf