Annotations: 7M3P

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d7m3pa1	All beta proteins	XRCC4, N-terminal domain	XRCC4, N-terminal domain	XRCC4, N-terminal domain	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
A	d7m3pa2	Coiled coil proteins	Parallel coiled-coil	XRCC4, C-terminal oligomerization domain	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
A	d7m3pa3	Artifacts	Tags	Tags	Tags	N-terminal Tags	Human (Homo sapiens ) [TaxId: 9606 ], Baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
B	d7m3pb1	All beta proteins	XRCC4, N-terminal domain	XRCC4, N-terminal domain	XRCC4, N-terminal domain	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
B	d7m3pb2	Coiled coil proteins	Parallel coiled-coil	XRCC4, C-terminal oligomerization domain	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	XRCC4 N-terminal domain-like	8036633	3001319	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	XRCC4 N-terminal domain-like	8036633	3001319	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	PF06632	e7m3pA3	A: beta barrels	X: XRCC4, N-terminal domain-like	H: XRCC4, N-terminal domain (From Topology)	T: XRCC4, N-terminal domain	F: PF06632	ECOD (1.6)
A	F_UNCLASSIFIED	e7m3pA1	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF21924	e7m3pA2	A: alpha duplicates or obligate multimers	X: XRCC4 C-terminal oligomerization domain (From Topology)	H: XRCC4 C-terminal oligomerization domain (From Topology)	T: XRCC4 C-terminal oligomerization domain	F: PF21924	ECOD (1.6)
B	PF06632	e7m3pB2	A: beta barrels	X: XRCC4, N-terminal domain-like	H: XRCC4, N-terminal domain (From Topology)	T: XRCC4, N-terminal domain	F: PF06632	ECOD (1.6)
B	F_UNCLASSIFIED	e7m3pB3	A: alpha arrays	X: HTH	H: HTH	T: HTH motif inserted in other structures	F: F_UNCLASSIFIED	ECOD (1.6)
B	PF21924	e7m3pB1	A: alpha duplicates or obligate multimers	X: XRCC4 C-terminal oligomerization domain (From Topology)	H: XRCC4 C-terminal oligomerization domain (From Topology)	T: XRCC4 C-terminal oligomerization domain	F: PF21924	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF06632	DNA double-strand break repair and V(D)J recombination protein XRCC4 (XRCC4)	DNA double-strand break repair and V(D)J recombination protein XRCC4	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Xrcc4-Spc110p(164-207)	protein-containing complex binding binding protein binding calmodulin binding structural constituent of cytoskeleton structural molecule activity FHA domain binding protein domain specific binding identical protein binding	cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis mitotic spindle elongation spindle elongation microtubule cytoskeleton organization mitotic cell cycle mitotic sister chromatid segregation cell cycle chromosome segregation cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis mitotic spindle elongation spindle elongation microtubule cytoskeleton organization mitotic cell cycle mitotic sister chromatid segregation cell cycle chromosome segregation microtubule cytoskeleton organization involved in mitosis spindle organization cell cycle process mitotic nuclear division organelle fission chromosome organization sister chromatid segregation mitotic spindle organization organelle organization nuclear division mitotic cell cycle process nuclear chromosome segregation microtubule-based process cytoskeleton organization gamma-tubulin complex localization localization gamma-tubulin complex localization to mitotic spindle pole body gamma-tubulin complex localization to nuclear side of mitotic spindle pole body protein-containing complex localization positive regulation of organelle organization regulation of cytoskeleton organization regulation of microtubule polymerization or depolymerization regulation of cellular process regulation of cellular component organization positive regulation of cellular component organization positive regulation of biological process regulation of protein-containing complex assembly positive regulation of protein-containing complex assembly microtubule polymerization or depolymerization positive regulation of protein polymerization positive regulation of cellular process protein polymerization regulation of biological process positive regulation of microtubule nucleation positive regulation of microtubule polymerization or depolymerization positive regulation of cellular component biogenesis positive regulation of cytoskeleton organization biological regulation regulation of microtubule-based process microtubule polymerization regulation of cellular component biogenesis positive regulation of supramolecular fiber organization regulation of microtubule nucleation regulation of organelle organization microtubule nucleation regulation of microtubule polymerization regulation of protein polymerization positive regulation of microtubule polymerization regulation of supramolecular fiber organization supramolecular fiber organization regulation of microtubule cytoskeleton organization sexual reproduction reproductive process conjugation with cellular fusion organelle fusion nucleus organization karyogamy karyogamy involved in conjugation with cellular fusion protein localization to microtubule cytoskeleton protein localization cellular localization protein localization to microtubule organizing center protein localization to cytoskeleton protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to spindle pole body protein localization to mitotic spindle pole body cellular response to stimulus cellular response to inorganic substance cellular response to metal ion cellular response to lithium ion response to stimulus response to inorganic substance cellular response to chemical stimulus response to lithium ion response to metal ion response to chemical positive regulation of molecular function regulation of molecular function regulation of ligase activity regulation of catalytic activity positive regulation of catalytic activity positive regulation of ligase activity response to X-ray response to ionizing radiation response to radiation response to abiotic stimulus DNA ligation involved in DNA repair primary metabolic process DNA metabolic process nucleic acid metabolic process DNA ligation nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process cellular response to stress DNA damage response response to stress metabolic process macromolecule metabolic process DNA repair protein localization to chromosome protein localization to site of double-strand break double-strand break repair immune system development multicellular organismal process immunoglobulin production cellular biosynthetic process somatic cell DNA recombination multicellular organism development V(D)J recombination somatic recombination of immunoglobulin gene segments anatomical structure development organic substance biosynthetic process somatic diversification of immune receptors system development developmental process production of molecular mediator of immune response DNA recombination cellular metabolic process gene expression macromolecule biosynthetic process somatic diversification of immunoglobulins immunoglobulin V(D)J recombination biosynthetic process immune system process somatic diversification of immune receptors via germline recombination within a single locus double-strand break repair via nonhomologous end joining	intracellular anatomical structure cellular anatomical entity intracellular organelle microtubule organizing center cytoskeleton central plaque of spindle pole body organelle intracellular non-membrane-bounded organelle spindle pole body microtubule cytoskeleton non-membrane-bounded organelle inner plaque of spindle pole body cytoplasm membrane-bounded organelle intracellular anatomical structure cellular anatomical entity intracellular organelle microtubule organizing center cytoskeleton central plaque of spindle pole body organelle intracellular non-membrane-bounded organelle spindle pole body microtubule cytoskeleton non-membrane-bounded organelle inner plaque of spindle pole body cytoplasm membrane-bounded organelle nucleus intracellular membrane-bounded organelle protein-containing complex nonhomologous end joining complex catalytic complex intracellular protein-containing complex DNA repair complex nuclear protein-containing complex DNA-dependent protein kinase-DNA ligase 4 complex cytosol DNA ligase IV complex site of double-strand break site of DNA damage chromosome membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR040593	Spindle pole body component 110, C-terminal	Domain
A, B	IPR014751	DNA repair protein XRCC4-like, C-terminal	Homologous Superfamily
A, B	IPR010585	DNA repair protein XRCC4	Family
A, B	IPR038051	XRCC4-like, N-terminal domain superfamily	Homologous Superfamily
A, B	IPR009089	XRCC4, N-terminal domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q13426	short stature, microcephaly, and endocrine dysfunction DNA ligase IV deficiency Chromosome Aberrations pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia schizophrenia astrocytic tumor congestive heart failure isolated growth hormone deficiency type IA malignant mesothelioma microcephalic primordial dwarfism-insulin resistance syndrome pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma primitive neuroectodermal tumor malignant colon neoplasm malignant pancreatic neoplasm short stature, microcephaly, and endocrine dysfunction DNA ligase IV deficiency Chromosome Aberrations pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia schizophrenia astrocytic tumor congestive heart failure isolated growth hormone deficiency type IA malignant mesothelioma microcephalic primordial dwarfism-insulin resistance syndrome pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma primitive neuroectodermal tumor malignant colon neoplasm malignant pancreatic neoplasm oligodendroglioma pancreatic intraductal papillary-mucinous neoplasm pituitary cancer psoriasis tuberculosis intellectual disability malignant ependymoma medulloblastoma osteosarcoma

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.