Annotations: 5BK0

Crystal structure of 663 Fab bound to circumsporozoite protein NANP 5-mer

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	UQ_con	e5bk0D1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: UQ_con	ECOD (v295.2)
B	RRM_1	e5bk0B1	A: alpha arrays	X: Cryptochrome/photolyase FAD-binding domain-related	H: Cryptochrome/photolyase FAD-binding domain-related	T: Undecaprenyl diphosphate synthase	F: RRM_1	ECOD (v295.2)
C	UQ_con	e5bk0C1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: UQ_con	ECOD (v295.2)
A	RRM_1	e5bk0A1	A: alpha arrays	X: Cryptochrome/photolyase FAD-binding domain-related	H: Cryptochrome/photolyase FAD-binding domain-related	T: Undecaprenyl diphosphate synthase	F: RRM_1	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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)
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)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
B, D	Fab 663	VH-CH1	Homo sapiens (human)	IGHV3-2303, IGHJ101, IGHG101, IGHG102, IGHG104, IGHG105	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202637-0)
A, C	Fab 663	L-KAPPA	Homo sapiens (human)	IGKV2-2801, IGKV2D-2801, IGKJ201, IGKC01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202637-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, D	Heavy Chain	IGHV3	-	circumsporozoite protein nanp 5-mer	SAbDab (2026-09-25)
A, C	Light Chain	IGKV2	Kappa	circumsporozoite protein nanp 5-mer	SAbDab (2026-09-25)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E	Circumsporozoite protein NANP 5-mer	-	biological process involved in interspecies interaction between organisms symbiont entry into host cell viral process symbiont entry into host viral life cycle entry into host cell by a symbiont-containing vacuole biological process involved in interaction with host biological process involved in symbiotic interaction	cell surface cellular anatomical structure cell periphery plasma membrane membrane intracellular anatomical structure cytoplasm
B, D	663 Antibody, heavy chain	-	-	-
A, C	663 Antibody, light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E	IPR051860	Plasmodium_CSP_Invasion	Unknown
E	IPR000884	Thrombospondin type-1 (TSP1) repeat	Repeat
E	IPR003067	Plasmodium circumsporozoite protein	Family
E	IPR036383	Thrombospondin type-1 repeat superfamily	Homologous Superfamily