6FG1 | pdb_00006fg1

CRYSTAL STRUCTURE OF FAB OF NATALIZUMAB IN COMPLEX WITH FAB OF NAA32.

External Resource: Annotation

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d6fg1a1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d6fg1a2	Artifacts	Tags	Tags	Tags	C-terminal Tags	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth D]	d6fg1d1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth D]	d6fg1d2	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)
C [auth H]	d6fg1h_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D [auth L]	d6fg1l2	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 L]	d6fg1l1	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)
A		e6fg1A1	A: Ten stranded beta/alpha barrel	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: bCoV_S1_N	F:	ECOD (20:10:01)
B [auth D]		e6fg1D1	A: Ten stranded beta/alpha barrel	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: bCoV_S1_N	F:	ECOD (20:10:01)
C [auth H]		e6fg1H1	A: Ten stranded beta/alpha barrel	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: bCoV_S1_N	F:	ECOD (20:10:01)
D [auth L]		e6fg1L1	A: Ten stranded beta/alpha barrel	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: bCoV_S1_N	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth D]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D [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
A	Fab NAA32	VH-CH1	Homo sapiens (human)	IGHV1-301, IGHJ201, IGHG101, IGHG102, IGHG104, IGHG105, IGHG112, IGHG114, IGHG113, IGHG109, IGHG110, IGHG107, IGHG1*11	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202609-0)
B [auth D]	Fab NAA32	L-KAPPA	Homo sapiens (human)	IGKV3-1501, IGKV3D-1501, IGKJ401, IGKJ402, IGKC*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202609-0)
C [auth H]	Fab natalizumab	VH-CH1	Homo sapiens (human)	IGHV1-301, IGHJ401, IGHJ402, IGHJ403, IGHG401, IGHG404	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-4_KAPPA	IMGT (202609-0)
D [auth L]	Fab natalizumab	L-KAPPA	Homo sapiens (human)	IGKV1-3301, IGKV1D-3301, IGKJ101, IGKC01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-4_KAPPA	IMGT (202609-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A	Heavy Chain	IGHV1	-	-	SAbDab (2026-03-13)
B [auth D]	Light Chain	IGKV3	Kappa	-	SAbDab (2026-03-13)
C [auth H]	Heavy Chain	IGHV1	-	-	SAbDab (2026-03-13)
D [auth L]	Light Chain	IGKV19	Kappa	-	SAbDab (2026-03-13)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

Chain	Name	Target	Provenance Source
C [auth H]	Natalizumab	ITGA4/CD49D	Therapeutic SAbDab (2026-03-13)
D [auth L]	Natalizumab	ITGA4/CD49D	Therapeutic SAbDab (2026-03-13)

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.