5CIP | pdb_00005cip

Crystal Structure of Unbound 4E10

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)
D [auth B]	d5cipb2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D [auth B]	d5cipb1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth L]	d5cipl2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth L]	d5cipl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (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)
C [auth A]	EF-hand_14	e5cipA1	A: alpha bundles	X: Cysteine proteinases-like	H: Piezo CTL2 domain	T: Piezo CTL2 domain	F: EF-hand_14	ECOD (develop294)
C [auth A]	EF-hand_1, EF-hand_6, EF-hand_7	e5cipA2	A: alpha bundles	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (develop294)
D [auth B]	EF-hand_14	e5cipB1	A: alpha bundles	X: Cysteine proteinases-like	H: Piezo CTL2 domain	T: Piezo CTL2 domain	F: EF-hand_14	ECOD (develop294)
B [auth L]	EF-hand_14	e5cipL1	A: alpha bundles	X: Cysteine proteinases-like	H: Piezo CTL2 domain	T: Piezo CTL2 domain	F: EF-hand_14	ECOD (develop294)
A [auth H]	EF-hand_14	e5cipH2	A: alpha bundles	X: Cysteine proteinases-like	H: Piezo CTL2 domain	T: Piezo CTL2 domain	F: EF-hand_14	ECOD (develop294)
A [auth H]	EF-hand_1, EF-hand_6, EF-hand_7	e5cipH3	A: alpha bundles	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth A]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D [auth B]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth H]	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
C [auth A]	4E10 mAb, anti-gp41 membrane-proximal external region (MPER)	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)
B [auth L], D [auth B]	[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)
A [auth H]	[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)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth A]	Heavy Chain	IGHV1	-	-	SAbDab (2026-03-20)
B [auth L], D [auth B]	Light Chain	IGKV3	Kappa	-	SAbDab (2026-03-20)
A [auth H]	Heavy Chain	IGHV1	-	-	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.