4XBP | pdb_00004xbp

Crystal structure of human 4E10 Fab crystalized in the presence of Phosphatidylethanolamine (06:0 PE)

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
G [auth F]	d4xbpf1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
G [auth F]	d4xbpf2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
E [auth D]	d4xbpd1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
E [auth D]	d4xbpd2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C [auth B]	d4xbpb1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C [auth B]	d4xbpb2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A [auth L]	d4xbpl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A [auth L]	d4xbpl2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
H [auth E]	BD-FAE	e4xbpE2	A: a/b three-layered sandwiches	X: HhH/H2TH	H: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	T: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	F: BD-FAE	ECOD (v294.1)
H [auth E]	NTP_transferase	e4xbpE1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: NTP_transferase	ECOD (v294.1)
F [auth C]	BD-FAE	e4xbpC2	A: a/b three-layered sandwiches	X: HhH/H2TH	H: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	T: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	F: BD-FAE	ECOD (v294.1)
F [auth C]	NTP_transferase	e4xbpC3	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: NTP_transferase	ECOD (v294.1)
D [auth A]	BD-FAE	e4xbpA2	A: a/b three-layered sandwiches	X: HhH/H2TH	H: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	T: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	F: BD-FAE	ECOD (v294.1)
D [auth A]	NTP_transferase	e4xbpA1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: NTP_transferase	ECOD (v294.1)
B [auth H]	BD-FAE	e4xbpH1	A: a/b three-layered sandwiches	X: HhH/H2TH	H: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	T: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	F: BD-FAE	ECOD (v294.1)
B [auth H]	NTP_transferase	e4xbpH2	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: NTP_transferase	ECOD (v294.1)
G [auth F]	BD-FAE	e4xbpF1	A: a/b three-layered sandwiches	X: HhH/H2TH	H: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	T: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	F: BD-FAE	ECOD (v294.1)
E [auth D]	BD-FAE	e4xbpD1	A: a/b three-layered sandwiches	X: HhH/H2TH	H: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	T: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	F: BD-FAE	ECOD (v294.1)
C [auth B]	BD-FAE	e4xbpB1	A: a/b three-layered sandwiches	X: HhH/H2TH	H: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	T: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	F: BD-FAE	ECOD (v294.1)
A [auth L]	BD-FAE	e4xbpL1	A: a/b three-layered sandwiches	X: HhH/H2TH	H: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	T: Head and neck region of the ectodomain of paramyxoviruses fusion glycoprotein	F: BD-FAE	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
H [auth E]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
F [auth C]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D [auth A]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
G [auth F]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
E [auth D]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C [auth B]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth L]	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 [auth H], D [auth A], F [auth C], H [auth E]	[HIV-1], neutralizing	VH-CH1	Homo sapiens (human)	IGHV1-6910, IGHJ101, IGHG101, IGHG102, IGHG104, IGHG105	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202611-0)
A [auth L], C [auth B], E [auth D], G [auth F]	[HIV-1], neutralizing	L-KAPPA	Homo sapiens (human)	IGKV3-2001, IGKJ101, IGKC*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202611-0)

SAbDab Antibody Annotation SAbDab Database Homepage

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

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.