Annotations: 6QNA

Structure of bovine anti-RSV hybrid Fab B13HC-B4LC

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)
H [auth F]	d6qnaf1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
F [auth D]	d6qnad1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
D [auth B]	d6qnab1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
B [auth L]	d6qnal1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
G [auth E]	d6qnae1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
G [auth E]	d6qnae2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
E [auth C]	d6qnac1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
E [auth C]	d6qnac2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
C [auth A]	d6qnaa1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
C [auth A]	d6qnaa3	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
C [auth A]	d6qnaa2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
A [auth H]	d6qnah1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
A [auth H]	d6qnah3	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
A [auth H]	d6qnah2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
H [auth F]	HpcH_HpaI	e6qnaF1	A: beta barrels	X: P-loop domains-like	H: a+b domain in acetyl-CoA synthetase-like proteins	T: a+b domain in acetyl-CoA synthetase-like proteins	F: HpcH_HpaI	ECOD (v294.2)
F [auth D]	HpcH_HpaI	e6qnaD1	A: beta barrels	X: P-loop domains-like	H: a+b domain in acetyl-CoA synthetase-like proteins	T: a+b domain in acetyl-CoA synthetase-like proteins	F: HpcH_HpaI	ECOD (v294.2)
D [auth B]	HpcH_HpaI	e6qnaB1	A: beta barrels	X: P-loop domains-like	H: a+b domain in acetyl-CoA synthetase-like proteins	T: a+b domain in acetyl-CoA synthetase-like proteins	F: HpcH_HpaI	ECOD (v294.2)
B [auth L]	HpcH_HpaI	e6qnaL1	A: beta barrels	X: P-loop domains-like	H: a+b domain in acetyl-CoA synthetase-like proteins	T: a+b domain in acetyl-CoA synthetase-like proteins	F: HpcH_HpaI	ECOD (v294.2)
G [auth E]	HpcH_HpaI	e6qnaE1	A: beta barrels	X: P-loop domains-like	H: a+b domain in acetyl-CoA synthetase-like proteins	T: a+b domain in acetyl-CoA synthetase-like proteins	F: HpcH_HpaI	ECOD (v294.2)
E [auth C]	HpcH_HpaI	e6qnaC1	A: beta barrels	X: P-loop domains-like	H: a+b domain in acetyl-CoA synthetase-like proteins	T: a+b domain in acetyl-CoA synthetase-like proteins	F: HpcH_HpaI	ECOD (v294.2)
C [auth A]	HpcH_HpaI	e6qnaA1	A: beta barrels	X: P-loop domains-like	H: a+b domain in acetyl-CoA synthetase-like proteins	T: a+b domain in acetyl-CoA synthetase-like proteins	F: HpcH_HpaI	ECOD (v294.2)
A [auth H]	HpcH_HpaI	e6qnaH1	A: beta barrels	X: P-loop domains-like	H: a+b domain in acetyl-CoA synthetase-like proteins	T: a+b domain in acetyl-CoA synthetase-like proteins	F: HpcH_HpaI	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
H [auth F]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
F [auth D]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
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)
G [auth E]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
E [auth C]	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], F [auth D], H [auth F]	Fab B13HC-B4LC,anti-RSV	L-LAMBDA	Bos taurus (bovine)	IGLV1-6701, IGLJ801, IGLJ701, IGLJ401, IGLC401, IGLC801	V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA	IG	FAB-GAMMA-1_LAMBDA	IMGT (202617-0)
A [auth H], C [auth A], E [auth C], G [auth E]	Fab B13HC-B4LC,anti-RSV	VH-CH1	Bos taurus (bovine)	IGHV1-1401, IGHV1-1402, IGHJ2-401, IGHG103	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_LAMBDA	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], F [auth D], H [auth F]	Light Chain	IGLV1	Lambda	-	SAbDab (2026-05-08)
A [auth H], C [auth A], E [auth C], G [auth E]	Heavy Chain	IGHV1	-	-	SAbDab (2026-05-08)

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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.