Annotations: 2YY9

Crystal structure of BTB domain from mouse HKR3

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)
B	d2yy9b1	Alpha and beta proteins (a+b)	POZ domain	POZ domain	automated matches	automated matches	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d2yy9b2	Artifacts	Tags	Tags	Tags	N-terminal Tags	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d2yy9a1	Alpha and beta proteins (a+b)	POZ domain	POZ domain	automated matches	automated matches	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d2yy9a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	BTB/POZ domain	8080942	4001139	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	POZ domain	8080943	3000894	SCOP2 (2022-06-29)
A	SCOP2B Superfamily	POZ domain	8080943	3000894	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)
B	POTRA	e2yy9B1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: POTRA	ECOD (v295.2)
A	POTRA	e2yy9A1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: POTRA	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.3.0)
A	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00651	BTB/POZ domain (BTB)	BTB/POZ domain	The BTB (for BR-C, ttk and bab) [1] or POZ (for Pox virus and Zinc finger) [2] domain is present near the N-terminus of a fraction of zinc finger (Pfam:PF00096) proteins and in proteins that contain the Pfam:PF01344 motif such as Kelch and a family o ...	The BTB (for BR-C, ttk and bab) [1] or POZ (for Pox virus and Zinc finger) [2] domain is present near the N-terminus of a fraction of zinc finger (Pfam:PF00096) proteins and in proteins that contain the Pfam:PF01344 motif such as Kelch and a family of pox virus proteins. The BTB/POZ domain mediates homomeric dimerisation and in some instances heteromeric dimerisation [2]. The structure of the dimerised PLZF BTB/POZ domain has been solved and consists of a tightly intertwined homodimer. The central scaffolding of the protein is made up of a cluster of alpha-helices flanked by short beta-sheets at both the top and bottom of the molecule [3]. POZ domains from several zinc finger proteins have been shown to mediate transcriptional repression and to interact with components of histone deacetylase co-repressor complexes including N-CoR and SMRT [4,5,6]. The POZ or BTB domain is also known as BR-C/Ttk or ZiN.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Zinc finger and BTB domain-containing protein 48	sequence-specific DNA binding DNA binding double-stranded telomeric DNA binding binding double-stranded DNA binding nucleic acid binding telomeric repeat DNA binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity sequence-specific double-stranded DNA binding transcription cis-regulatory region binding transcription regulatory region nucleic acid binding cation binding sequence-specific DNA binding DNA binding double-stranded telomeric DNA binding binding double-stranded DNA binding nucleic acid binding telomeric repeat DNA binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity sequence-specific double-stranded DNA binding transcription cis-regulatory region binding transcription regulatory region nucleic acid binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding RNA binding identical protein binding protein binding	regulation of biological process regulation of cellular process biological regulation RNA metabolic process primary metabolic process regulation of macromolecule metabolic process nucleic acid metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process regulation of RNA metabolic process cellular process metabolic process regulation of nucleobase-containing compound metabolic process macromolecule metabolic process regulation of biological process regulation of cellular process biological regulation RNA metabolic process primary metabolic process regulation of macromolecule metabolic process nucleic acid metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process regulation of RNA metabolic process cellular process metabolic process regulation of nucleobase-containing compound metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of DNA-templated transcription positive regulation of biological process positive regulation of macromolecule biosynthetic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process DNA-templated transcription positive regulation of biosynthetic process positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process positive regulation of RNA metabolic process regulation of gene expression biosynthetic process positive regulation of RNA biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription transcription by RNA polymerase II regulation of transcription by RNA polymerase II telomere organization chromosome organization DNA metabolic process telomere maintenance via telomere lengthening telomere maintenance cellular component organization organelle organization cellular component organization or biogenesis	intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle chromosome chromosome, telomeric region chromosomal region membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle chromosome chromosome, telomeric region chromosomal region membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR013087	Zinc finger C2H2-type	Domain
A, B	IPR036236	Zinc finger C2H2 superfamily	Homologous Superfamily
A, B	IPR000210	BTB/POZ domain	Domain
A, B	IPR011333	SKP1/BTB/POZ domain superfamily	Homologous Superfamily