4XCY | pdb_00004xcy

Crystal structure of human 4E10 Fab in complex with phosphatidylglycerol (06:0 PG)

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
L [auth J]	BD-FAE	e4xcyJ2	A: alpha bundles	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 (develop294)
L [auth J]	NTP_transferase	e4xcyJ3	A: alpha bundles	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: NTP_transferase	ECOD (develop294)
J [auth G]	BD-FAE	e4xcyG1	A: alpha bundles	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 (develop294)
J [auth G]	NTP_transferase	e4xcyG2	A: alpha bundles	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: NTP_transferase	ECOD (develop294)
H [auth E]	BD-FAE	e4xcyE2	A: alpha bundles	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 (develop294)
H [auth E]	NTP_transferase	e4xcyE1	A: alpha bundles	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: NTP_transferase	ECOD (develop294)
F [auth C]	BD-FAE	e4xcyC1	A: alpha bundles	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 (develop294)
F [auth C]	NTP_transferase	e4xcyC2	A: alpha bundles	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: NTP_transferase	ECOD (develop294)
D [auth A]	BD-FAE	e4xcyA2	A: alpha bundles	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 (develop294)
D [auth A]	NTP_transferase	e4xcyA3	A: alpha bundles	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: NTP_transferase	ECOD (develop294)
B [auth H]	BD-FAE	e4xcyH1	A: alpha bundles	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 (develop294)
B [auth H]	NTP_transferase	e4xcyH2	A: alpha bundles	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: NTP_transferase	ECOD (develop294)
K	BD-FAE	e4xcyK1	A: alpha bundles	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 (develop294)
I	BD-FAE	e4xcyI1	A: alpha bundles	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 (develop294)
G [auth F]	BD-FAE	e4xcyF1	A: alpha bundles	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 (develop294)
E [auth D]	BD-FAE	e4xcyD1	A: alpha bundles	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 (develop294)
C [auth B]	BD-FAE	e4xcyB1	A: alpha bundles	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 (develop294)
A [auth L]	BD-FAE	e4xcyL1	A: alpha bundles	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 (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
L [auth J]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
J [auth G]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
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)
K	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
I	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], J [auth G], B [auth H], D [auth A], F [auth C], H [auth E], J [auth G], L [auth J]	[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 (202610-0)
A [auth L], C [auth B], E [auth D], G [auth F], I, A [auth L], C [auth B], E [auth D], G [auth F], I, K	[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 (202610-0)

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], J [auth G], B [auth H], D [auth A], F [auth C], H [auth E], J [auth G], L [auth J]	Heavy Chain	IGHV1	-	(2S)-3-{[(R)-{[(2R)-2,3-dihydroxypropyl]oxy}(hydroxy)phosphoryl]oxy}-2-(hexanoyloxy)propyl hexanoate	SAbDab (2026-03-20)
A [auth L], C [auth B], E [auth D], G [auth F], I, A [auth L], C [auth B], E [auth D], G [auth F], I, K	Light Chain	IGKV3	Kappa	(2S)-3-{[(R)-{[(2R)-2,3-dihydroxypropyl]oxy}(hydroxy)phosphoryl]oxy}-2-(hexanoyloxy)propyl hexanoate	SAbDab (2026-03-20)

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.