Annotations: 4P7D

Antitoxin HicB3 crystal structure

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	HicB antitoxin-like	8044736	4004109	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	TTHA1013/TTHA0281-like	8052313	3000880	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Ribbon-helix-helix	8052312	3000295	SCOP2 (2022-06-29)
D	SCOP2B Superfamily	TTHA1013/TTHA0281-like	8052313	3000880	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Ribbon-helix-helix	8052312	3000295	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Ribbon-helix-helix	8052312	3000295	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	TTHA1013/TTHA0281-like	8052313	3000880	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Ribbon-helix-helix	8052312	3000295	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	TTHA1013/TTHA0281-like	8052313	3000880	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)
A	Dynamin_M,GED	e4p7dA1	A: alpha arrays	X: Middle and GTPase effector domains in dynamin-related proteins	H: Middle and GTPase effector domains in dynamin-related proteins	T: Middle and GTPase effector domains in dynamin-related proteins	F: Dynamin_M,GED	ECOD (v295.2)
D	Dynamin_M,GED	e4p7dD1	A: alpha arrays	X: Middle and GTPase effector domains in dynamin-related proteins	H: Middle and GTPase effector domains in dynamin-related proteins	T: Middle and GTPase effector domains in dynamin-related proteins	F: Dynamin_M,GED	ECOD (v295.2)
C	Dynamin_M,GED	e4p7dC1	A: alpha arrays	X: Middle and GTPase effector domains in dynamin-related proteins	H: Middle and GTPase effector domains in dynamin-related proteins	T: Middle and GTPase effector domains in dynamin-related proteins	F: Dynamin_M,GED	ECOD (v295.2)
B	GntR	e4p7dB1	A: alpha arrays	X: Middle and GTPase effector domains in dynamin-related proteins	H: Middle and GTPase effector domains in dynamin-related proteins	T: Middle and GTPase effector domains in dynamin-related proteins	F: GntR	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.160.250	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain		CATH (4.3.0)
D	3.30.160.250	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain		CATH (4.3.0)
C	3.30.160.250	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain		CATH (4.3.0)
B	3.30.160.250	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF15919	HicB_like antitoxin of bacterial toxin-antitoxin system (HicB_lk_antitox)	HicB_like antitoxin of bacterial toxin-antitoxin system	This is a family of HicB-like antitoxins.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Antitoxin HicB3	sequence-specific DNA binding DNA binding binding nucleic acid binding	regulation of cellular process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process biological regulation primary metabolic process regulation of cellular process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process cellular process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR035069	Antitoxin HicB/UPF0150	Homologous Superfamily
A, B, C, D	IPR013321	Arc-type ribbon-helix-helix	Homologous Superfamily
A, B, C, D	IPR031807	HicB-like antitoxin of toxin-antitoxin system	Domain