Annotations: 2PG4

Crystal structure of a putative dna binding protein (ape_0880a) from aeropyrum pernix k1 at 2.21 A resolution

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
B	d2pg4b_	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	F93-like	Uncharacterized protein APE0880.1	(Aeropyrum pernix K1 ) [TaxId: 272557 ],	SCOPe (2.08)
A	d2pg4a1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	F93-like	Uncharacterized protein APE0880.1	(Aeropyrum pernix K1 ) [TaxId: 272557 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Winged helix DNA-binding domain	8057974	3000034	SCOP2B (2022-06-29)
A	SCOP2 Family	F93-like	8057973	4000152	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Winged helix DNA-binding domain	8057974	3000034	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Phage_CII	e2pg4B1	A: beta barrels	X: ETN0001 domain-like	H: YozE-like	T: Ribbon-helix-helix	F: Phage_CII	ECOD (v294.2)
A	ArnR1-like_WHD	e2pg4A1	A: alpha arrays	X: HTH	H: HTH	T: winged helix domain	F: ArnR1-like_WHD	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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)
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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF22166	ArnR1-like, winged-helix domain (WHD_ArnR1)	ArnR1-like, winged-helix domain	This entry represents a WH-like domain present in ArnR1-like proteins (PDB:2pg4). ArnR1-like transcription factors have been implicated in regulating the expression of components found in both the archaeal adhesive pilus and UV-inducible pili systems ...	This entry represents a WH-like domain present in ArnR1-like proteins (PDB:2pg4). ArnR1-like transcription factors have been implicated in regulating the expression of components found in both the archaeal adhesive pilus and UV-inducible pili systems [1,2].	Domain

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR054040	ArnR1-like, winged-helix domain	Domain
A, B	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.