Annotations: 6PEH

Crystal structure of rabbit monoclonal anti-HIV antibody 1C2

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]	d6pehb1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth L]	d6pehl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C [auth A]	d6peha_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A [auth H]	d6pehh_	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)
D [auth B]	ATP-synt	e6pehB1	A: beta barrels	X: jelly-roll	H: DUF1107-like	T: DUF1107-like	F: ATP-synt	ECOD (v294.2)
B [auth L]	ATP-synt	e6pehL1	A: beta barrels	X: jelly-roll	H: DUF1107-like	T: DUF1107-like	F: ATP-synt	ECOD (v294.2)
C [auth A]	ATP-synt	e6pehA1	A: beta barrels	X: jelly-roll	H: DUF1107-like	T: DUF1107-like	F: ATP-synt	ECOD (v294.2)
A [auth H]	ATP-synt	e6pehH1	A: beta barrels	X: jelly-roll	H: DUF1107-like	T: DUF1107-like	F: ATP-synt	ECOD (v294.2)

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)
B [auth L]	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)
A [auth H]	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
B [auth L], D [auth B]	mAb 1C2, anti-HIV	L-KAPPA	Oryctolagus cuniculus (rabbit)	IGKV1S301, IGKV1S302, IGKJ1-202, IGKJ1-201, IGKC1*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA_KAPPA	IMGT (202617-0)
A [auth H], C [auth A]	mAb 1C2, anti-HIV	VH-CH1	Oryctolagus cuniculus (rabbit)	IGHV1S4001, IGHJ602, IGHG01, IGHG05, IGHG*02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA_KAPPA	IMGT (202617-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L], D [auth B]	Light Chain	IGKV1	Kappa	-	SAbDab (2026-05-08)
A [auth H], C [auth A]	Heavy Chain	IGHV1	-	-	SAbDab (2026-05-08)

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A [auth H], C [auth A]	PCA	Parent Component: GLN : AA0031 : 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420

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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.