Annotations: 1NSN

THE CRYSTAL STRUCTURE OF ANTIBODY N10-STAPHYLOCOCCAL NUCLEASE COMPLEX AT 2.9 ANGSTROMS RESOLUTION

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C [auth S]	d1nsns_	All beta proteins	OB-fold	Staphylococcal nuclease	Staphylococcal nuclease	Staphylococcal nuclease	(Staphylococcus aureus ) [TaxId: 1280 ],	SCOPe (2.08)
B [auth H]	d1nsnh1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin heavy chain variable domain, VH	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B [auth H]	d1nsnh2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A [auth L]	d1nsnl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin light chain kappa variable domain, VL-kappa	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A [auth L]	d1nsnl2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin light chain kappa constant domain, CL-kappa	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth S]	SCOP2B Superfamily	Staphylococcal nuclease	8041753	3000443	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth S]	Cpn10	e1nsnS1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Cpn10	ECOD (v295.2)
B [auth H]	Copper-bind	e1nsnH1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Copper-bind	ECOD (v295.2)
A [auth L]	Copper-bind	e1nsnL1	A: alpha arrays	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: Phage tail fiber protein trimerization domain	F: Copper-bind	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth S]	2.40.50.90	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (4.3.0)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth L]	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
B [auth H]	N10	VH-CH1	Mus musculus (house mouse)	IGHV3-202, IGHJ201, IGHG1*01	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202637-0)
A [auth L]	N10	L-KAPPA	Mus musculus (house mouse)	IGKV3-701, IGKJ201, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202637-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth H]	Heavy Chain	IGHV3	-	staphylococcal nuclease	SAbDab (2026-09-25)
A [auth L]	Light Chain	IGKV3	Kappa	staphylococcal nuclease	SAbDab (2026-09-25)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth S]	STAPHYLOCOCCAL NUCLEASE	binding nucleic acid binding endonuclease activity catalytic activity, acting on a nucleic acid hydrolase activity DNA nuclease activity 3' overhang single-stranded DNA endonuclease activity DNA endonuclease activity single-stranded DNA endonuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on DNA nuclease activity catalytic activity	-	cellular anatomical structure membrane extracellular region
B [auth H]	IGG FAB (IGG1, KAPPA)	-	-	-
A [auth L]	IGG FAB (IGG1, KAPPA)	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth S]	IPR016071	Staphylococcal nuclease (SNase-like), OB-fold	Domain
C [auth S]	IPR035437	SNase-like, OB-fold superfamily	Homologous Superfamily
C [auth S]	IPR002071	Thermonuclease active site	Active Site