Annotations: 6TYW

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Ku80 subunit N-terminal domain	8094914	4000603	SCOP2 (2021-05-27)
A	SCOP2 Superfamily	vWA-like	8094915	3000832	SCOP2 (2021-05-27)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF03731	e6tywA1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: vWA-like	F: PF03731	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03731	Ku70/Ku80 N-terminal alpha/beta domain (Ku_N)	Ku70/Ku80 N-terminal alpha/beta domain	The Ku heterodimer (composed of Ku70 Swiss:P12956 and Ku80 Swiss:P13010) contributes to genomic integrity through its ability to bind DNA double-strand breaks and facilitate repair by the non-homologous end-joining pathway. This is the amino terminal ...	The Ku heterodimer (composed of Ku70 Swiss:P12956 and Ku80 Swiss:P13010) contributes to genomic integrity through its ability to bind DNA double-strand breaks and facilitate repair by the non-homologous end-joining pathway. This is the amino terminal alpha/beta domain. This domain only makes a small contribution to the dimer interface. The domain comprises a six stranded beta sheet of the Rossman fold [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	X-ray repair cross-complementing protein 5	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding DNA binding double-stranded DNA binding nucleic acid binding hydrolase activity catalytic activity ATP-dependent activity, acting on DNA DNA helicase activity catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid helicase activity ATP-dependent activity sequence-specific DNA binding telomeric DNA binding damaged DNA binding	nucleobase-containing compound metabolic process DNA recombination metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular response to stimulus double-strand break repair response to stimulus double-strand break repair via nonhomologous end joining cellular response to stress DNA damage response response to stress nucleobase-containing compound metabolic process DNA recombination metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular response to stimulus double-strand break repair response to stimulus double-strand break repair via nonhomologous end joining cellular response to stress DNA damage response response to stress cellular process DNA repair telomere organization chromosome organization telomere maintenance cellular component organization organelle organization cellular component organization or biogenesis	membrane-bounded organelle intracellular organelle protein-containing complex intracellular anatomical structure organelle nucleus nuclear protein-containing complex Ku70:Ku80 complex intracellular membrane-bounded organelle cellular anatomical entity
B	GLU-ARG-LYS-ARG-ILE-LEU-PRO-THR-TRP-MET-LEU-ALA-GLU	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 protein-containing complex organization protein-DNA complex organization cellular component organization chromatin organization chromatin remodeling cellular component organization or biogenesis protein localization cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process DNA repair-dependent chromatin remodeling protein-containing complex organization protein-DNA complex organization 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	IPR036494	Ku, C-terminal domain superfamily	Homologous Superfamily
A	IPR024193	Ku80	Family
A	IPR016194	SPOC-like, C-terminal domain superfamily	Homologous Superfamily
A	IPR006164	Ku70/Ku80 beta-barrel domain	Domain
A	IPR036465	von Willebrand factor A-like domain superfamily	Homologous Superfamily
A	IPR005161	Ku70/Ku80, N-terminal alpha/beta	Domain
A	IPR014893	Ku, C-terminal	Domain
A	IPR005160	Ku70/Ku80 C-terminal arm	Domain
B	IPR019406	Aprataxin and PNK-like factor, PBZ domain	Domain
B	IPR041388	PNK, FHA domain	Domain
B	IPR008984	SMAD/FHA domain superfamily	Homologous Superfamily
B	IPR039253	Aprataxin and PNK-like factor	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B	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 R01GM133198.