Annotations: 4U77

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	BTB	e4u77A1	A: a+b two layers	X: POZ domain (From Topology)	H: POZ domain (From Topology)	T: POZ domain	F: BTB	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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	Centrosome-associated zinc finger protein CP190	chromatin binding binding DNA binding organic cyclic compound binding nucleic acid binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity cytoskeletal protein binding microtubule binding protein binding tubulin binding identical protein binding protein homodimerization activity chromatin binding binding DNA binding organic cyclic compound binding nucleic acid binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity cytoskeletal protein binding microtubule binding protein binding tubulin binding identical protein binding protein homodimerization activity protein dimerization activity chromatin insulator sequence binding chromatin DNA binding POZ domain binding protein domain specific binding cation binding ion binding metal ion binding small molecule binding	heterochromatin boundary formation regulation of cellular process cellular biosynthetic process negative regulation of biological process negative regulation of cellular metabolic process cellular component organization chromatin organization negative regulation of cellular process chromatin remodeling cellular component organization or biogenesis negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process heterochromatin formation heterochromatin boundary formation regulation of cellular process cellular biosynthetic process negative regulation of biological process negative regulation of cellular metabolic process cellular component organization chromatin organization negative regulation of cellular process chromatin remodeling cellular component organization or biogenesis negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process heterochromatin formation epigenetic regulation of gene expression cellular metabolic process negative regulation of metabolic process biological regulation regulation of cellular metabolic process heterochromatin organization regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process cellular process negative regulation of gene expression, epigenetic regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process regulation of cytoskeleton organization regulation of cellular component organization regulation of organelle organization organelle organization cytoskeleton organization developmental process establishment of organelle localization multicellular organismal process cellular localization transport nucleus localization intracellular transport embryo development establishment of localization embryonic development via the syncytial blastoderm multicellular organism development localization embryo development ending in birth or egg hatching organelle localization establishment of localization in cell anatomical structure development syncytial nuclear migration nuclear migration nuclear axial expansion chromatin looping RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process primary metabolic process nucleobase-containing compound biosynthetic process nucleic acid metabolic process regulation of DNA-templated transcription transcription by RNA polymerase II regulation of transcription by RNA polymerase II	intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle polytene chromosome chromosome cellular anatomical entity non-membrane-bounded organelle condensed chromosome chromosomal region polytene chromosome band centrosome microtubule organizing center cytoskeleton intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle polytene chromosome chromosome cellular anatomical entity non-membrane-bounded organelle condensed chromosome chromosomal region polytene chromosome band centrosome microtubule organizing center cytoskeleton microtubule cytoskeleton cytoplasm chromatin pericentriolar material polymeric cytoskeletal fiber spindle spindle microtubule supramolecular fiber microtubule supramolecular polymer supramolecular complex membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

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