5BXD | pdb_00005bxd

Crystal structure of pentameric KCTD1 BTB domain form 2

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
Pharos: Disease Associations

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d5bxda_	Alpha and beta proteins (a+b)	POZ domain	POZ domain	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d5bxdb1	Alpha and beta proteins (a+b)	POZ domain	POZ domain	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d5bxdb2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d5bxdc1	Alpha and beta proteins (a+b)	POZ domain	POZ domain	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d5bxdc2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d5bxdd1	Alpha and beta proteins (a+b)	POZ domain	POZ domain	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d5bxdd2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
E	d5bxde1	Alpha and beta proteins (a+b)	POZ domain	POZ domain	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
E	d5bxde2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	POZ domain	8067489	3000894	SCOP2B (2022-06-29)
B	SCOP2 Family	Tetramerization domain of potassium channels	8067488	4001137	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	POZ domain	8067489	3000894	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	POZ domain	8067489	3000894	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	POZ domain	8067489	3000894	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	POZ domain	8067489	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	DEAD_2	e5bxdA1	A: a/b three-layered sandwiches	X: ssDNA-binding transcriptional regulator domain-like	H: ssDNA-binding transcriptional regulator domain	T: ssDNA-binding transcriptional regulator domain	F: DEAD_2	ECOD (v294.1)
B	DEAD_2	e5bxdB1	A: a/b three-layered sandwiches	X: ssDNA-binding transcriptional regulator domain-like	H: ssDNA-binding transcriptional regulator domain	T: ssDNA-binding transcriptional regulator domain	F: DEAD_2	ECOD (v294.1)
C	DEAD_2	e5bxdC1	A: a/b three-layered sandwiches	X: ssDNA-binding transcriptional regulator domain-like	H: ssDNA-binding transcriptional regulator domain	T: ssDNA-binding transcriptional regulator domain	F: DEAD_2	ECOD (v294.1)
D	DEAD_2	e5bxdD1	A: a/b three-layered sandwiches	X: ssDNA-binding transcriptional regulator domain-like	H: ssDNA-binding transcriptional regulator domain	T: ssDNA-binding transcriptional regulator domain	F: DEAD_2	ECOD (v294.1)
E	DEAD_2	e5bxdE1	A: a/b three-layered sandwiches	X: ssDNA-binding transcriptional regulator domain-like	H: ssDNA-binding transcriptional regulator domain	T: ssDNA-binding transcriptional regulator domain	F: DEAD_2	ECOD (v294.1)

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)
B	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.3.0)
C	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.3.0)
D	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (4.3.0)
E	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, 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 KCTD1	transcription factor binding protein binding binding transcription corepressor activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity molecular adaptor activity identical protein 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 cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure nucleoplasm organelle lumen organelle nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E	IPR048595	BTB/POZ domain-containing protein KCTD1/15-like, C-terminal domain	Domain
A, B, C, D, E	IPR003131	Potassium channel tetramerisation-type BTB domain	Domain
A, B, C, D, E	IPR048599	BTB/POZ domain-containing protein KCTD1, BTB/POZ 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: Q719H9	scalp-ear-nipple syndrome astrocytic tumor cardiac arrest intellectual disability malignant ependymoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia atypical teratoid rhabdoid tumor ductal breast carcinoma in situ interstitial cystitis malignant glioma oligodendroglioma pilocytic astrocytoma spina bifida breast carcinoma scalp-ear-nipple syndrome astrocytic tumor cardiac arrest intellectual disability malignant ependymoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia atypical teratoid rhabdoid tumor ductal breast carcinoma in situ interstitial cystitis malignant glioma oligodendroglioma pilocytic astrocytoma spina bifida breast carcinoma glioblastoma large cell medulloblastoma medulloblastoma ovarian cancer primitive neuroectodermal tumor

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.