Annotations: 2KQE

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	zf-CCHH	e2kqeA1	A: few secondary structure elements	X: PBZ domain (From Topology)	H: PBZ domain (From Topology)	T: PBZ domain	F: zf-CCHH	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF10283	PBZ domain (zf-CCHH)	PBZ domain	This domain is a zinc-finger motif that in humans is part of the APLF, aprataxin- and PNK-like forkhead association domain-containing protein. The ZnF is highly conserved both in primary sequence and in the spacing between the putative zinc coordinat ...	This domain is a zinc-finger motif that in humans is part of the APLF, aprataxin- and PNK-like forkhead association domain-containing protein. The ZnF is highly conserved both in primary sequence and in the spacing between the putative zinc coordinating residues and is configured CX5CX6HX5H. Many of the proteins containing the APLF-like ZnF are involved in DNA strand break repair and/or contain domains implicated in DNA metabolism.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Aprataxin and PNK-like factor	protein binding binding histone binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding DNA endonuclease activity endonuclease activity catalytic activity, acting on DNA nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on a nucleic acid protein binding binding histone binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding DNA endonuclease activity endonuclease activity catalytic activity, acting on DNA nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on a nucleic acid hydrolase activity catalytic activity DNA nuclease activity protein carrier chaperone histone chaperone activity molecular carrier activity 3'-5' exonuclease activity exonuclease activity ADP-D-ribose modification-dependent protein binding modification-dependent protein binding poly-ADP-D-ribose binding carbohydrate derivative binding DNA-(apurinic or apyrimidinic site) endonuclease activity protein folding chaperone cation binding ion binding metal ion binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process DNA repair-dependent chromatin remodeling cellular component organization chromatin organization chromatin remodeling cellular component organization or biogenesis protein localization localization protein localization to chromatin cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process DNA repair-dependent chromatin remodeling cellular component organization chromatin organization chromatin remodeling cellular component organization or biogenesis protein localization localization protein localization to chromatin cellular localization protein localization to chromosome protein localization to organelle cellular macromolecule localization macromolecule localization regulation of epithelial to mesenchymal transition developmental process regulation of biological process regulation of cellular process regulation of developmental process cellular developmental process biological regulation animal organ development regulation of cell differentiation mesenchyme development tissue development epithelial to mesenchymal transition cell differentiation anatomical structure development mesenchymal cell differentiation adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity regulation of immune effector process multicellular organismal process regulation of DNA recombination regulation of leukocyte activation regulation of cell activation B cell activation involved in immune response cell activation involved in immune response regulation of primary metabolic process nucleobase-containing compound metabolic process multicellular organism development leukocyte mediated immunity regulation of immune system process somatic diversification of immune receptors regulation of nucleobase-containing compound metabolic process somatic recombination of immunoglobulin genes involved in immune response system development immune response regulation of adaptive immune response cellular metabolic process DNA recombination regulation of cellular metabolic process primary metabolic process DNA metabolic process regulation of B cell mediated immunity immune effector process somatic diversification of immunoglobulins regulation of gene expression regulation of leukocyte mediated immunity biosynthetic process regulation of response to stimulus B cell mediated immunity regulation of immune response regulation of macromolecule biosynthetic process metabolic process regulation of production of molecular mediator of immune response macromolecule metabolic process regulation of metabolic process regulation of DNA metabolic process isotype switching immune system development immunoglobulin production immunoglobulin production involved in immunoglobulin-mediated immune response cellular biosynthetic process somatic cell DNA recombination lymphocyte activation leukocyte activation somatic diversification of immunoglobulins involved in immune response somatic recombination of immunoglobulin gene segments regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains regulation of immunoglobulin mediated immune response leukocyte activation involved in immune response regulation of B cell activation regulation of multicellular organismal process lymphocyte activation involved in immune response regulation of biosynthetic process production of molecular mediator of immune response regulation of isotype switching B cell activation cell activation regulation of macromolecule metabolic process gene expression adaptive immune response immunoglobulin mediated immune response macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process regulation of lymphocyte mediated immunity regulation of immunoglobulin production immune system process somatic diversification of immune receptors via germline recombination within a single locus regulation of lymphocyte activation multi-multicellular organism process reproductive process female pregnancy embryo implantation multi-organism reproductive process single strand break repair DNA repair positive regulation of nucleobase-containing compound metabolic process positive regulation of biological process DNA ligation positive regulation of metabolic process positive regulation of DNA metabolic process regulation of DNA ligation positive regulation of DNA ligation positive regulation of macromolecule metabolic process double-strand break repair double-strand break repair via nonhomologous end joining	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen site of double-strand break intracellular non-membrane-bounded organelle site of DNA damage chromosome non-membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR019406	Aprataxin and PNK-like factor, PBZ domain	Domain
A	IPR041388	PNK, FHA domain	Domain
A	IPR008984	SMAD/FHA domain superfamily	Homologous Superfamily
A	IPR039253	Aprataxin and PNK-like factor	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q8IW19	celiac disease osteosarcoma lung carcinoma vascular disease nicotine dependence

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.