Annotations: 2BSQ

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2bsqa1	Alpha and beta proteins (a/b)	PIN domain-like	PIN domain-like	PIN domain	Trafficking protein B	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
A	d2bsqa2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
B	d2bsqb1	Alpha and beta proteins (a/b)	PIN domain-like	PIN domain-like	PIN domain	Trafficking protein B	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
B	d2bsqb2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
C	d2bsqc1	Alpha and beta proteins (a/b)	PIN domain-like	PIN domain-like	PIN domain	Trafficking protein B	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
C	d2bsqc2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
D	d2bsqd1	Alpha and beta proteins (a/b)	PIN domain-like	PIN domain-like	PIN domain	Trafficking protein B	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
D	d2bsqd2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
E	d2bsqe1	All alpha proteins	Ribbon-helix-helix	Ribbon-helix-helix	Trafficking protein A-like	Trafficking protein A	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
F	d2bsqf1	All alpha proteins	Ribbon-helix-helix	Ribbon-helix-helix	Trafficking protein A-like	Trafficking protein A	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
G	d2bsqg1	All alpha proteins	Ribbon-helix-helix	Ribbon-helix-helix	Trafficking protein A-like	Trafficking protein A	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
H	d2bsqh1	All alpha proteins	Ribbon-helix-helix	Ribbon-helix-helix	Trafficking protein A-like	Trafficking protein A	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	PIN domain-like	8042130	3001041	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	PIN domain-like	8042130	3001041	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	PIN domain-like	8042130	3001041	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	PIN domain-like	8042130	3001041	SCOP2B (2022-06-29)
E	SCOP2 Family	Trafficking protein A-like	8026136	4001309	SCOP2 (2022-06-29)
E	SCOP2 Superfamily	Ribbon-helix-helix	8038515	3000295	SCOP2 (2022-06-29)
F	SCOP2B Superfamily	Ribbon-helix-helix	8038515	3000295	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Ribbon-helix-helix	8038515	3000295	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Ribbon-helix-helix	8038515	3000295	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	PIN	e2bsqA1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: PIN domain-like	F: PIN	ECOD (1.6)
B	PIN	e2bsqB1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: PIN domain-like	F: PIN	ECOD (1.6)
C	PIN	e2bsqC1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: PIN domain-like	F: PIN	ECOD (1.6)
D	PIN	e2bsqD1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: PIN domain-like	F: PIN	ECOD (1.6)
E	StbC	e2bsqE1	A: alpha arrays	X: HTH	H: HTH	T: Ribbon-helix-helix	F: StbC	ECOD (1.6)
F	StbC	e2bsqF1	A: alpha arrays	X: HTH	H: HTH	T: Ribbon-helix-helix	F: StbC	ECOD (1.6)
G	StbC	e2bsqG1	A: alpha arrays	X: HTH	H: HTH	T: Ribbon-helix-helix	F: StbC	ECOD (1.6)
H	StbC	e2bsqH1	A: alpha arrays	X: HTH	H: HTH	T: Ribbon-helix-helix	F: StbC	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1010	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	5'-nuclease	CATH (4.3.0)
B	3.40.50.1010	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	5'-nuclease	CATH (4.3.0)
C	3.40.50.1010	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	5'-nuclease	CATH (4.3.0)
D	3.40.50.1010	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	5'-nuclease	CATH (4.3.0)
E	1.10.1220.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant	Met repressor-like	CATH (4.3.0)
F	1.10.1220.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant	Met repressor-like	CATH (4.3.0)
G	1.10.1220.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant	Met repressor-like	CATH (4.3.0)
H	1.10.1220.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant	Met repressor-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF01850	PIN domain (PIN)	PIN domain	-	Domain
E, F, G, H	PF22513	Antitoxin FitA-like, ribbon-helix-helix (FitA-like_RHH)	Antitoxin FitA-like, ribbon-helix-helix	This domain is found in Antitoxin FitA from Neisseria gonorrhoeae and similar bacterial sequences. FitA is the antitoxin component of a type II toxin-antitoxin (TA) system. It binds DNA through its ribbon-helix-helix motif (this entry) [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	TRAFFICKING PROTEIN B	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding DNA binding organic cyclic compound binding nucleic acid binding nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA nuclease activity cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding DNA binding organic cyclic compound binding nucleic acid binding nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity catalytic activity	biological process involved in interspecies interaction between organisms migration in host biological process involved in interaction with host biological process involved in symbiotic interaction	-
E, F, G, H	TRAFFICKING PROTEIN A	identical protein binding protein binding binding protein homodimerization activity protein dimerization activity sequence-specific DNA binding DNA binding organic cyclic compound binding nucleic acid binding	regulation of cellular process cellular biosynthetic 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 cellular metabolic process regulation of cellular process cellular biosynthetic 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 cellular metabolic process biological regulation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process metabolic process regulation of macromolecule biosynthetic process cellular process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process biological process involved in interspecies interaction between organisms migration in host biological process involved in interaction with host biological process involved in symbiotic interaction	-
I	IR36, FORWARD STRAND	-	-	-
J	IR36, REVERSE STRAND	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR002716	PIN domain	Domain
A, B, C, D	IPR029060	PIN-like domain superfamily	Homologous Superfamily
A, B, C, D	IPR022907	VapC family	Family
A, B, C, D	IPR050556	Type II toxin-antitoxin system RNase	Family
E, F, G, H	IPR013321	Arc-type ribbon-helix-helix	Homologous Superfamily
E, F, G, H	IPR010985	Ribbon-helix-helix	Homologous Superfamily

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 R01GM133198.