Annotations: 8BK2

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C	Ku_PK_bind	e8bk2C1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ku_PK_bind	ECOD (v294.2)
B	Ku_PK_bind	e8bk2B1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ku_PK_bind	ECOD (v294.2)
A	FHBP_C	e8bk2A1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: FHBP_C	ECOD (v294.2)
A	Ku_PK_bind	e8bk2A2	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ku_PK_bind	ECOD (v294.2)
H [auth F]	Ku_PK_bind	e8bk2F1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ku_PK_bind	ECOD (v294.2)
F [auth D]	Ku_PK_bind	e8bk2D1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ku_PK_bind	ECOD (v294.2)
D [auth H]	Ku_PK_bind	e8bk2H1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ku_PK_bind	ECOD (v294.2)
I [auth G]	Ku_PK_bind	e8bk2G1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ku_PK_bind	ECOD (v294.2)
G [auth E]	Ku_PK_bind	e8bk2E1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ku_PK_bind	ECOD (v294.2)
E [auth L]	Ku_PK_bind	e8bk2L1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Ku_PK_bind	ECOD (v294.2)

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D [auth H], F [auth D], H [auth F]	Heavy Chain	IGHV3	-	factor h-binding protein	SAbDab (2026-05-22)
E [auth L], G [auth E], I [auth G]	Light Chain	IGKV3	Kappa	factor h-binding protein	SAbDab (2026-05-22)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Factor H-binding protein	-	-	cell outer membrane cellular anatomical structure external encapsulating structure extracellular region membrane cell envelope outer membrane
D [auth H], F [auth D], H [auth F]	Fab Heavy chain	-	-	-
E [auth L], G [auth E], I [auth G]	Fab light Chains	-	-	-

Chains	Accession	Name	Type
A, B, C	IPR011250	Outer membrane protein/outer membrane enzyme PagP, beta-barrel	Homologous Superfamily
A, B, C	IPR014902	Factor H binding protein-like, C-terminal	Domain
A, B, C	IPR049377	Factor H binding protein, N-terminal	Domain
A, B, C	IPR049378	Factor H binding protein	Family

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.

8BK2 | pdb_00008bk2