6NEX | pdb_00006nex

Fab fragment of anti-cocaine antibody h2E2

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Modification 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]	d6nexb_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	Mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C [auth A]	d6nexa2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C [auth A]	d6nexa1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B [auth H]	d6nexh_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A [auth L]	d6nexl2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A [auth L]	d6nexl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D [auth B]	ATP-synt	e6nexB1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: DUF1107-like	T: DUF1107-like	F: ATP-synt	ECOD (v294.1)
C [auth A]	ATP-synt	e6nexA1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: DUF1107-like	T: DUF1107-like	F: ATP-synt	ECOD (v294.1)
B [auth H]	ATP-synt	e6nexH1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: DUF1107-like	T: DUF1107-like	F: ATP-synt	ECOD (v294.1)
A [auth L]	ATP-synt	e6nexL1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: DUF1107-like	T: DUF1107-like	F: ATP-synt	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D [auth B]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C [auth A]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
A [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

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
D [auth B]	Fab h2E2, anti-cocaine	VH-CH1	Homo sapiens (human)	IGHV3-701, IGHV3-702, IGHV3-703, IGHJ502, IGHG103, IGHG108, IGHG1*06	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_LAMBDA	IMGT (202612-0)
C [auth A]	Fab h2E2, anti-cocaine	L-LAMBDA	Homo sapiens (human)	IGLV201, IGLV202, IGLJ201, IGLC201, IGLC202, IGLC304	V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA	IG	FAB-GAMMA-1_LAMBDA	IMGT (202612-0)
B [auth H]	Fab h2E2, anti-cocaine	VH-CH1	Homo sapiens (human)	IGHV3-701, IGHV3-702, IGHV3-703, IGHJ502, IGHG103, IGHG108, IGHG1*06	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_LAMBDA	IMGT (202612-0)
A [auth L]	Fab h2E2, anti-cocaine	L-LAMBDA	Homo sapiens (human)	IGLV201, IGLV202, IGLJ201, IGLC201, IGLC202, IGLC304	V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA	IG	FAB-GAMMA-1_LAMBDA	IMGT (202612-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D [auth B]	Heavy Chain	IGHV3	-	-	SAbDab (2026-03-27)
C [auth A]	Light Chain	IGLV2	Lambda	-	SAbDab (2026-03-27)
B [auth H]	Heavy Chain	IGHV3	-	-	SAbDab (2026-03-27)
A [auth L]	Light Chain	IGLV2	Lambda	-	SAbDab (2026-03-27)

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
D [auth B]	MLY	Parent Component: LYS RESID: AA0075 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084
C [auth A]	MLY	Parent Component: LYS RESID: AA0075 , AA0075 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084 , N6,N6-dimethyl-L-lysine MOD:00084
C [auth A]	PCA	Parent Component: GLN RESID: AA0075 , AA0075 , AA0031 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084 , N6,N6-dimethyl-L-lysine MOD:00084 , 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420
B [auth H]	MLY	Parent Component: LYS RESID: AA0075 , AA0075 , AA0031 , AA0075 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084 , N6,N6-dimethyl-L-lysine MOD:00084 , 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420 , N6,N6-dimethyl-L-lysine MOD:00084
A [auth L]	MLY	Parent Component: LYS RESID: AA0075 , AA0075 , AA0031 , AA0075 , AA0075 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084 , N6,N6-dimethyl-L-lysine MOD:00084 , 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420 , N6,N6-dimethyl-L-lysine MOD:00084 , N6,N6-dimethyl-L-lysine MOD:00084
A [auth L]	PCA	Parent Component: GLN RESID: AA0075 , AA0075 , AA0031 , AA0075 , AA0075 , AA0031 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084 , N6,N6-dimethyl-L-lysine MOD:00084 , 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420 , N6,N6-dimethyl-L-lysine MOD:00084 , N6,N6-dimethyl-L-lysine MOD:00084 , 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420

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.