4QEX | pdb_00004qex

Crystal structure of PfEBA-175 RII in complex with a Fab fragment from inhibitory antibody R217

External Resource: Annotation

Domain Annotation: ECOD Classification
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Family 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)
F [auth I]	V-set_8	e4qexI2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
F [auth I]	C1-set_1	e4qexI1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
C [auth H]	V-set_8	e4qexH2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
C [auth H]	C1-set_1	e4qexH1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
E [auth M]	C1-set_4	e4qexM2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
E [auth M]	V-set	e4qexM1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
B [auth L]	C1-set_4	e4qexL2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
B [auth L]	V-set	e4qexL1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
D [auth B]	Duffy_binding	e4qexB2	A: alpha bundles	X: Duffy-binding-like domain, N-terminal subdomain (From Topology)	H: Duffy-binding-like domain, N-terminal subdomain (From Topology)	T: Duffy-binding-like domain, N-terminal subdomain	F: Duffy_binding	ECOD (1.6)
D [auth B]	PTZ00176	e4qexB1	A: alpha bundles	X: Duffy-binding-like domain, C-terminal subdomain (From Topology)	H: Duffy-binding-like domain, C-terminal subdomain (From Topology)	T: Duffy-binding-like domain, C-terminal subdomain	F: PTZ00176	ECOD (1.6)
A	Duffy_binding	e4qexA3	A: alpha bundles	X: Duffy-binding-like domain, N-terminal subdomain (From Topology)	H: Duffy-binding-like domain, N-terminal subdomain (From Topology)	T: Duffy-binding-like domain, N-terminal subdomain	F: Duffy_binding	ECOD (1.6)
A	PTZ00176	e4qexA2	A: alpha bundles	X: Duffy-binding-like domain, C-terminal subdomain (From Topology)	H: Duffy-binding-like domain, C-terminal subdomain (From Topology)	T: Duffy-binding-like domain, C-terminal subdomain	F: PTZ00176	ECOD (1.6)

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
C [auth H], F [auth I]	Antibody	VH-CH1	Mus musculus (house mouse)	IGHV1-2601, IGHJ401, IGHG1*02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202547-0)
B [auth L], E [auth M]	Antibody	L-KAPPA	Mus musculus (house mouse)	IGKV3-1001, IGKJ401, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202547-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth H], F [auth I]	Heavy Chain	IGHV1	-	erythrocyte-binding antigen-175	SAbDab (2025-12-05)
B [auth L], E [auth M]	Light Chain	IGKV3	Kappa	erythrocyte-binding antigen-175	SAbDab (2025-12-05)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, D [auth B]	PF05424	Duffy binding domain (Duffy_binding)	Duffy binding domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth H], F [auth I]	Antibody Heavy Chain	-	-	-
B [auth L], E [auth M]	Antibody Light Chain	-	-	-
A, D [auth B]	Erythrocyte-binding antigen-175	host cell surface binding binding host cell surface receptor binding	-	cellular anatomical structure membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, D [auth B]	IPR043057	Erythrocyte binding antigen 175, C-terminal domain superfamily	Homologous Superfamily
A, D [auth B]	IPR008602	Duffy-antigen binding domain	Domain
A, D [auth B]	IPR021620	Erythrocyte binding antigen 175, C-terminal	Domain
A, D [auth B]	IPR042202	Duffy-antigen binding superfamily	Homologous Superfamily

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.