1P4A

Crystal Structure of the PurR complexed with cPRPP

External Resource: Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1p4aa1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	N-terminal domain of Bacillus PurR	N-terminal domain of Bacillus PurR	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
A	d1p4aa2	Alpha and beta proteins (a/b)	PRTase-like	PRTase-like	Phosphoribosyltransferases (PRTases)	Pur operon repressor (PurR), C-terminal domain	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
B	d1p4ab1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	N-terminal domain of Bacillus PurR	N-terminal domain of Bacillus PurR	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
B	d1p4ab2	Alpha and beta proteins (a/b)	PRTase-like	PRTase-like	Phosphoribosyltransferases (PRTases)	Pur operon repressor (PurR), C-terminal domain	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
C	d1p4ac1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	N-terminal domain of Bacillus PurR	N-terminal domain of Bacillus PurR	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
C	d1p4ac2	Alpha and beta proteins (a/b)	PRTase-like	PRTase-like	Phosphoribosyltransferases (PRTases)	Pur operon repressor (PurR), C-terminal domain	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
D	d1p4ad1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	N-terminal domain of Bacillus PurR	N-terminal domain of Bacillus PurR	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
D	d1p4ad2	Alpha and beta proteins (a/b)	PRTase-like	PRTase-like	Phosphoribosyltransferases (PRTases)	Pur operon repressor (PurR), C-terminal domain	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Winged helix DNA-binding domain	8002996	3000034	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	PRTase-like	8002994	3000060	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Winged helix DNA-binding domain	8002996	3000034	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	PRTase-like	8002994	3000060	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Winged helix DNA-binding domain	8002996	3000034	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	PRTase-like	8002994	3000060	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Winged helix DNA-binding domain	8002996	3000034	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	PRTase-like	8002994	3000060	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	PuR_N	e1p4aA1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PuR_N	ECOD (1.6)
A	Pribosyltran	e1p4aA2	A: a/b three-layered sandwiches	X: PRTase-like (From Topology)	H: PRTase-like (From Topology)	T: PRTase-like	F: Pribosyltran	ECOD (1.6)
B	PuR_N	e1p4aB1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PuR_N	ECOD (1.6)
B	Pribosyltran	e1p4aB2	A: a/b three-layered sandwiches	X: PRTase-like (From Topology)	H: PRTase-like (From Topology)	T: PRTase-like	F: Pribosyltran	ECOD (1.6)
C	PuR_N	e1p4aC1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PuR_N	ECOD (1.6)
C	Pribosyltran	e1p4aC2	A: a/b three-layered sandwiches	X: PRTase-like (From Topology)	H: PRTase-like (From Topology)	T: PRTase-like	F: Pribosyltran	ECOD (1.6)
D	PuR_N	e1p4aD1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PuR_N	ECOD (1.6)
D	Pribosyltran	e1p4aD2	A: a/b three-layered sandwiches	X: PRTase-like (From Topology)	H: PRTase-like (From Topology)	T: PRTase-like	F: Pribosyltran	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
A	3.40.50.2020	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
B	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
B	3.40.50.2020	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
C	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
C	3.40.50.2020	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
D	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
D	3.40.50.2020	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF09182	Bacterial purine repressor, N-terminal (PuR_N)	Bacterial purine repressor, N-terminal	The N-terminal domain of the bacterial purine repressor PuR is a winged-helix domain, a subdivision of the HTH structural family. It consists of a canonical arrangement of secondary structures: a1-b1-a2-T-a3-b2-W-b3, where a2-T-a3 is the HTH motif, a ...	The N-terminal domain of the bacterial purine repressor PuR is a winged-helix domain, a subdivision of the HTH structural family. It consists of a canonical arrangement of secondary structures: a1-b1-a2-T-a3-b2-W-b3, where a2-T-a3 is the HTH motif, a3 is the recognition helix, and W is the wing. The domain allows for recognition of a conserved CGAA sequence in the centre of a DNA PurBox, resulting in binding to the major groove of DNA [1].	Domain
A, B, C, D	PF00156	Phosphoribosyl transferase domain (Pribosyltran)	Phosphoribosyl transferase domain	This family includes a range of diverse phosphoribosyl transferase enzymes. This family includes: Adenine phosphoribosyl-transferase EC:2.4.2.7, Swiss:P07672. Hypoxanthine-guanine-xanthine phosphoribosyl-transferase Swiss:P51900. Hypoxanthine phosph ...	This family includes a range of diverse phosphoribosyl transferase enzymes. This family includes: Adenine phosphoribosyl-transferase EC:2.4.2.7, Swiss:P07672. Hypoxanthine-guanine-xanthine phosphoribosyl-transferase Swiss:P51900. Hypoxanthine phosphoribosyl-transferase EC:2.4.2.8 Swiss:P36766. Ribose-phosphate pyrophosphokinase i EC:2.7.6.1 Swiss:P09329. Amidophosphoribosyltransferase EC:2.4.2.14 Swiss:P00496. Orotate phosphoribosyl-transferase EC:2.4.2.10 Swiss:P11172. Uracil phosphoribosyl-transferase EC:2.4.2.9 Swiss:P25532. Xanthine-guanine phosphoribosyl-transferase EC:2.4.2.22 Swiss:P00501. In Arabidopsis, At the very N-terminus of this domain is the P-Loop NTPase domain [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Pur operon repressor	DNA binding binding nucleic acid binding	regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic 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 negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process negative regulation of small molecule metabolic process regulation of small molecule metabolic process nucleobase-containing small molecule metabolic process nucleobase metabolic process small molecule metabolic process regulation of purine nucleobase metabolic process negative regulation of purine nucleobase metabolic process purine nucleobase metabolic process purine-containing compound metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B, C, D	IPR000836	Phosphoribosyltransferase domain	Domain
A, B, C, D	IPR010078	Pur operon repressor	Family
A, B, C, D	IPR029057	Phosphoribosyltransferase-like	Homologous Superfamily
A, B, C, D	IPR050118	Purine/Pyrimidine Phosphoribosyltransferase	Family
A, B, C, D	IPR015265	Bacterial purine repressor, N-terminal	Domain
A, B, C, D	IPR036390	Winged helix DNA-binding domain superfamily	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 R01GM157729.