Annotations: 3DRY

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	POZ domain	8067485	3000894	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	POZ domain	8067485	3000894	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	POZ domain	8067485	3000894	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	POZ domain	8067485	3000894	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	POZ domain	8067485	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)
A	PF02214	e3dryA1	A: a+b two layers	X: POZ domain (From Topology)	H: POZ domain (From Topology)	T: POZ domain	F: PF02214	ECOD (1.6)
B	PF02214	e3dryB1	A: a+b two layers	X: POZ domain (From Topology)	H: POZ domain (From Topology)	T: POZ domain	F: PF02214	ECOD (1.6)
C	PF02214	e3dryC1	A: a+b two layers	X: POZ domain (From Topology)	H: POZ domain (From Topology)	T: POZ domain	F: PF02214	ECOD (1.6)
D	PF02214	e3dryD1	A: a+b two layers	X: POZ domain (From Topology)	H: POZ domain (From Topology)	T: POZ domain	F: PF02214	ECOD (1.6)
E	PF02214	e3dryE1	A: a+b two layers	X: POZ domain (From Topology)	H: POZ domain (From Topology)	T: POZ domain	F: PF02214	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.3.0)
A	6.10.140.750	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
A	3.30.70.2000	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
B	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.3.0)
B	6.10.140.750	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
B	3.30.70.2000	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
C	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.3.0)
C	6.10.140.750	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
C	3.30.70.2000	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
D	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.3.0)
D	6.10.140.750	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
D	3.30.70.2000	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
E	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.3.0)
E	6.10.140.750	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
E	3.30.70.2000	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E	PF02214	BTB/POZ domain (BTB_2)	BTB/POZ domain	In voltage-gated K+ channels this domain is responsible for subfamily-specific assembly of alpha-subunits into functional tetrameric channels [1]. In KCTD1 (Swiss:Q719H9) this domain functions as a transcriptional repressor [2]. It also mediates homo ...	In voltage-gated K+ channels this domain is responsible for subfamily-specific assembly of alpha-subunits into functional tetrameric channels [1]. In KCTD1 (Swiss:Q719H9) this domain functions as a transcriptional repressor [2]. It also mediates homomultimerisation of KCTD1 and interaction of KCTD1 with the transcription factor AP-2-alpha [2-3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E	BTB/POZ domain-containing protein KCTD5	protein binding binding cullin family protein binding protein-containing complex binding identical protein binding	cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process proteolysis involved in protein catabolic process primary metabolic process cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process proteolysis involved in protein catabolic process primary metabolic process proteasomal protein catabolic process protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process macromolecule catabolic process organic substance metabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis ubiquitin-dependent protein catabolic process metabolic process protein metabolic process macromolecule metabolic process organic substance catabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cullin-RING ubiquitin ligase complex protein-containing complex ubiquitin ligase complex catalytic complex transferase complex Cul3-RING ubiquitin ligase complex intracellular protein-containing complex membrane-bounded organelle intracellular organelle organelle intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cullin-RING ubiquitin ligase complex protein-containing complex ubiquitin ligase complex catalytic complex transferase complex Cul3-RING ubiquitin ligase complex intracellular protein-containing complex membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E	IPR003131	Potassium channel tetramerisation-type BTB domain	Domain
A, B, C, D, E	IPR000210	BTB/POZ domain	Domain
A, B, C, D, E	IPR011333	SKP1/BTB/POZ domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D, E	Pharos: Q9NXV2	ductal breast carcinoma in situ malignant ependymoma osteosarcoma polycystic ovary syndrome glioblastoma malignant glioma pancreatic ductal adenocarcinoma primitive neuroectodermal tumor invasive ductal breast carcinoma medulloblastoma pancreatic intraductal papillary-mucinous neoplasm psoriasis

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.