Annotations: 5JA8

Crystal structure of the HigB2 toxin in complex with Nb2

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Protein Family 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)
H	d5ja8h1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
H	d5ja8h2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
H	d5ja8h3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
F	d5ja8f1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
F	d5ja8f2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
F	d5ja8f3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
D	d5ja8d1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
D	d5ja8d2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
D	d5ja8d3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
B	d5ja8b1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
B	d5ja8b2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)
B	d5ja8b3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Lama glama ) [TaxId: 9844 ],	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	KH_NusA_2nd	e5ja8H1	A: alpha arrays	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: KH_NusA_2nd	ECOD (v295.2)
F	KH_NusA_2nd	e5ja8F1	A: alpha arrays	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: KH_NusA_2nd	ECOD (v295.2)
D	KH_NusA_2nd	e5ja8D1	A: alpha arrays	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: KH_NusA_2nd	ECOD (v295.2)
B	KH_NusA_2nd	e5ja8B1	A: alpha arrays	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: KH_NusA_2nd	ECOD (v295.2)
G	RelE	e5ja8G1	A: alpha arrays	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: RelE	ECOD (v295.2)
E	RelE	e5ja8E1	A: alpha arrays	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: RelE	ECOD (v295.2)
C	AARP2CN	e5ja8C1	A: alpha arrays	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: AARP2CN	ECOD (v295.2)
A	RelE	e5ja8A1	A: alpha arrays	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: RelE	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
H	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
F	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, D, F, H	Heavy Chain	IGHV1	-	toxin higb-2	SAbDab (2026-09-11)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C, E, G	PF06296	RelE toxin of RelE / RelB toxin-antitoxin system (RelE)	RelE toxin of RelE / RelB toxin-antitoxin system	RelE is a family of Gram-negative bacterial antitoxins of the RelE/RelB toxin-antitoxin system. Its cognate antitoxin is family RelB, Pfam:PF04221.	Domain

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C, E, G	IPR009387	Toxin HigB-2	Family

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