Annotations: 8BAH

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Mre11 C-terminal domain-like	8090757	3002453	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Metallo-dependent phosphatases	8090756	3001067	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Mre11 C-terminal domain-like	8090757	3002453	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Metallo-dependent phosphatases	8090756	3001067	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)
B	Metallophos_2_1	e8bahB1	A: a+b four layers	X: Carbon-nitrogen hydrolase-like	H: Metallo-dependent phosphatases (From Topology)	T: Metallo-dependent phosphatases	F: Metallophos_2_1	ECOD (1.6)
B	Mre11_DNA_bind_N	e8bahB2	A: a+b four layers	X: Mre11 nuclease C-terminal domain (From Topology)	H: Mre11 nuclease C-terminal domain (From Topology)	T: Mre11 nuclease C-terminal domain	F: Mre11_DNA_bind_N	ECOD (1.6)
A	Metallophos_2_1	e8bahA2	A: a+b four layers	X: Carbon-nitrogen hydrolase-like	H: Metallo-dependent phosphatases (From Topology)	T: Metallo-dependent phosphatases	F: Metallophos_2_1	ECOD (1.6)
A	Mre11_DNA_bind_N	e8bahA1	A: a+b four layers	X: Mre11 nuclease C-terminal domain (From Topology)	H: Mre11 nuclease C-terminal domain (From Topology)	T: Mre11 nuclease C-terminal domain	F: Mre11_DNA_bind_N	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00149	Calcineurin-like phosphoesterase (Metallophos)	Calcineurin-like phosphoesterase	This family includes a diverse range of phosphoesterases [1], including protein phosphoserine phosphatases, nucleotidases, sphingomyelin phosphodiesterases and 2'-3' cAMP phosphodiesterases as well as nucleases such as bacterial SbcD Swiss:P13457 or ...	This family includes a diverse range of phosphoesterases [1], including protein phosphoserine phosphatases, nucleotidases, sphingomyelin phosphodiesterases and 2'-3' cAMP phosphodiesterases as well as nucleases such as bacterial SbcD Swiss:P13457 or yeast MRE11 Swiss:P32829. The most conserved regions in this superfamily centre around the metal chelating residues.	Domain
A, B	PF04152	Mre11 DNA-binding presumed domain (Mre11_DNA_bind)	Mre11 DNA-binding presumed domain	The Mre11 complex is a multi-subunit nuclease that is composed of Mre11, Rad50 and Nbs1/Xrs2, and is involved in checkpoint signalling and DNA replication [1]. Mre11 has an intrinsic DNA-binding activity that is stimulated by Rad50 on its own or in ...	The Mre11 complex is a multi-subunit nuclease that is composed of Mre11, Rad50 and Nbs1/Xrs2, and is involved in checkpoint signalling and DNA replication [1]. Mre11 has an intrinsic DNA-binding activity that is stimulated by Rad50 on its own or in combination with Nbs1 [2].	Domain
C	PF08599	DNA damage repair protein Nbs1 (Nbs1_C)	DNA damage repair protein Nbs1	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Double-strand break repair protein MRE11	nuclease activity catalytic activity, acting on a nucleic acid catalytic activity cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding hydrolase activity, acting on ester bonds 3'-5' exonuclease activity hydrolase activity exonuclease activity nuclease activity catalytic activity, acting on a nucleic acid catalytic activity cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding hydrolase activity, acting on ester bonds 3'-5' exonuclease activity hydrolase activity exonuclease activity DNA endonuclease activity endonuclease activity catalytic activity, acting on DNA single-stranded DNA endodeoxyribonuclease activity DNA nuclease activity cell adhesion molecule binding cadherin binding protein binding identical protein binding DNA exonuclease activity DNA exonuclease activity, producing 5'-phosphomonoesters 3'-5'-DNA exonuclease activity DNA binding double-stranded DNA binding nucleic acid binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process double-strand break repair DNA double-strand break processing primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process metabolic process macromolecule metabolic process cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process double-strand break repair DNA double-strand break processing primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process metabolic process macromolecule metabolic process DNA repair homologous recombination sexual reproduction reproductive process meiotic cell cycle process cellular component organization meiosis I meiotic nuclear division cell cycle cellular component organization or biogenesis reciprocal homologous recombination cell cycle process DNA recombination meiotic cell cycle organelle fission reciprocal meiotic recombination nuclear division organelle organization meiosis I cell cycle process cell population proliferation chromosome organization sister chromatid cohesion mitochondrial double-strand break repair mitochondrial double-strand break repair via homologous recombination recombinational repair positive regulation of organelle organization regulation of telomere maintenance regulation of cellular component organization regulation of cellular process positive regulation of cellular component organization positive regulation of biological process telomere organization regulation of primary metabolic process positive regulation of metabolic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of cellular process positive regulation of telomere maintenance regulation of biological process biological regulation regulation of chromosome organization regulation of macromolecule metabolic process regulation of organelle organization positive regulation of chromosome organization telomere maintenance positive regulation of DNA metabolic process regulation of metabolic process regulation of DNA metabolic process DNA damage checkpoint signaling regulation of cell cycle phase transition signaling negative regulation of biological process negative regulation of cell cycle cell cycle phase transition intracellular signal transduction mitotic cell cycle negative regulation of mitotic cell cycle cell communication regulation of mitotic cell cycle mitotic DNA integrity checkpoint signaling mitotic DNA damage checkpoint signaling negative regulation of cellular process negative regulation of cell cycle phase transition signal transduction mitotic intra-S DNA damage checkpoint signaling regulation of cell cycle regulation of cell cycle process DNA integrity checkpoint signaling negative regulation of cell cycle process cell cycle checkpoint signaling mitotic cell cycle checkpoint signaling mitotic cell cycle process signal transduction in response to DNA damage G2/M transition of mitotic cell cycle mitotic G2/M transition checkpoint cell cycle G2/M phase transition negative regulation of mitotic cell cycle phase transition regulation of G2/M transition of mitotic cell cycle regulation of cell cycle G2/M phase transition regulation of mitotic cell cycle phase transition negative regulation of cell cycle G2/M phase transition negative regulation of G2/M transition of mitotic cell cycle mitotic cell cycle phase transition regulation of double-strand break repair regulation of cellular response to stress positive regulation of response to stimulus positive regulation of DNA repair regulation of response to stress positive regulation of double-strand break repair regulation of DNA repair regulation of response to stimulus telomere maintenance via telomerase nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA-templated DNA biosynthetic process telomere maintenance via telomere lengthening nucleic acid biosynthetic process biosynthetic process DNA biosynthetic process chromatin organization chromatin remodeling R-loop processing negative regulation of programmed cell death regulation of apoptotic process regulation of programmed cell death cell death negative regulation of apoptotic process apoptotic process programmed cell death negative regulation of double-strand break repair via nonhomologous end joining negative regulation of DNA repair negative regulation of double-strand break repair negative regulation of nucleobase-containing compound metabolic process regulation of double-strand break repair via nonhomologous end joining negative regulation of macromolecule metabolic process double-strand break repair via nonhomologous end joining negative regulation of response to stimulus negative regulation of metabolic process negative regulation of DNA metabolic process meiotic chromosome segregation chromosome organization involved in meiotic cell cycle homologous chromosome pairing at meiosis nuclear chromosome segregation homologous chromosome segregation chromosome segregation telomeric 3' overhang formation DNA strand elongation telomere capping meiotic DNA double-strand break formation regulation of DNA recombination mitotic recombination regulation of mitotic recombination DNA-templated DNA replication DNA-templated DNA replication maintenance of fidelity DNA replication DNA strand resection involved in replication fork processing replication fork processing mitotic G2 DNA damage checkpoint signaling double-strand break repair via homologous recombination	membrane-bounded organelle intracellular organelle protein-containing complex cellular anatomical structure intracellular anatomical structure BRCA1-C complex organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cytoplasm cytosol membraneless organelle intracellular membraneless organelle membrane-bounded organelle intracellular organelle protein-containing complex cellular anatomical structure intracellular anatomical structure BRCA1-C complex organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cytoplasm cytosol membraneless organelle intracellular membraneless organelle chromosome chromosome, telomeric region chromosomal region membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen replication fork Mre11 complex site of double-strand break site of DNA damage nuclear body PML body
C	Nibrin	protein binding binding histone binding chromatin-protein adaptor activity protein-macromolecule adaptor activity molecular adaptor activity enzyme regulator activity protein serine/threonine kinase activator activity kinase activator activity enzyme activator activity molecular function activator activity molecular function regulator activity protein kinase activator activity protein kinase regulator activity protein binding binding histone binding chromatin-protein adaptor activity protein-macromolecule adaptor activity molecular adaptor activity enzyme regulator activity protein serine/threonine kinase activator activity kinase activator activity enzyme activator activity molecular function activator activity molecular function regulator activity protein kinase activator activity protein kinase regulator activity kinase regulator activity DNA binding damaged DNA binding nucleic acid binding transcription factor binding DNA-binding transcription factor binding phosphorylation-dependent protein binding modification-dependent protein binding	developmental process neuroblast proliferation multicellular organismal process cell population proliferation cellular developmental process nervous system development generation of neurons neurogenesis multicellular organism development cell differentiation anatomical structure development cellular process neural precursor cell proliferation system development developmental process neuroblast proliferation multicellular organismal process cell population proliferation cellular developmental process nervous system development generation of neurons neurogenesis multicellular organism development cell differentiation anatomical structure development cellular process neural precursor cell proliferation system development cellular response to stimulus telomere maintenance in response to DNA damage response to stimulus telomere organization chromosome organization primary metabolic process DNA metabolic process nucleic acid metabolic process telomere maintenance cellular component organization nucleobase-containing compound metabolic process organelle organization cellular response to stress DNA damage response response to stress metabolic process cellular component organization or biogenesis macromolecule metabolic process double-strand break repair DNA double-strand break processing DNA repair localization protein localization to chromosome protein localization to organelle macromolecule localization protein localization to site of double-strand break intracellular protein localization homologous recombination DNA recombination developmental growth chordate embryonic development growth embryo development in utero embryonic development embryo development ending in birth or egg hatching blastocyst growth blastocyst development formation of extrachromosomal circular DNA cellular component biogenesis cellular component assembly telomere maintenance via telomere trimming t-circle formation regulation of DNA recombination regulation of cellular process regulation of double-strand break repair regulation of cellular response to stress positive regulation of biological process positive regulation of double-strand break repair via homologous recombination regulation of primary metabolic process positive regulation of response to stimulus positive regulation of metabolic process positive regulation of DNA repair regulation of response to stress recombinational repair positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process double-strand break repair via homologous recombination positive regulation of cellular process positive regulation of DNA recombination regulation of biological process biological regulation regulation of macromolecule metabolic process positive regulation of double-strand break repair regulation of DNA repair regulation of double-strand break repair via homologous recombination positive regulation of DNA metabolic process regulation of response to stimulus regulation of metabolic process regulation of DNA metabolic process positive regulation of organelle organization regulation of telomere maintenance regulation of cellular component organization positive regulation of cellular component organization positive regulation of telomere maintenance regulation of chromosome organization regulation of organelle organization positive regulation of chromosome organization protection from non-homologous end joining at telomere telomere capping immune system development adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity immunoglobulin production immunoglobulin production involved in immunoglobulin-mediated immune response somatic cell DNA recombination B cell activation involved in immune response lymphocyte activation cell activation involved in immune response leukocyte activation somatic diversification of immunoglobulins involved in immune response somatic recombination of immunoglobulin gene segments leukocyte activation involved in immune response leukocyte mediated immunity somatic diversification of immune receptors lymphocyte activation involved in immune response somatic recombination of immunoglobulin genes involved in immune response production of molecular mediator of immune response immune response B cell activation cell activation gene expression macromolecule biosynthetic process immunoglobulin mediated immune response adaptive immune response immune effector process somatic diversification of immunoglobulins biosynthetic process immune system process somatic diversification of immune receptors via germline recombination within a single locus B cell mediated immunity isotype switching double-strand break repair via nonhomologous end joining double-strand break repair via alternative nonhomologous end joining regulation of cell cycle phase transition signaling G2/M transition of mitotic cell cycle negative regulation of biological process negative regulation of cell cycle cell cycle phase transition intracellular signal transduction mitotic cell cycle negative regulation of mitotic cell cycle mitotic G2/M transition checkpoint cell communication regulation of mitotic cell cycle negative regulation of cellular process negative regulation of cell cycle phase transition signal transduction cell cycle regulation of cell cycle cell cycle process cell cycle G2/M phase transition negative regulation of mitotic cell cycle phase transition regulation of G2/M transition of mitotic cell cycle regulation of cell cycle process regulation of cell cycle G2/M phase transition negative regulation of cell cycle process cell cycle checkpoint signaling regulation of mitotic cell cycle phase transition mitotic cell cycle checkpoint signaling mitotic cell cycle process negative regulation of cell cycle G2/M phase transition negative regulation of G2/M transition of mitotic cell cycle mitotic cell cycle phase transition negative regulation of telomere maintenance negative regulation of chromosome organization negative regulation of nucleobase-containing compound metabolic process negative regulation of macromolecule metabolic process negative regulation of cellular component organization negative regulation of metabolic process negative regulation of organelle organization negative regulation of telomere capping negative regulation of DNA metabolic process regulation of telomere capping DNA damage checkpoint signaling DNA integrity checkpoint signaling signal transduction in response to DNA damage cell death apoptotic signaling pathway apoptotic process intrinsic apoptotic signaling pathway programmed cell death chromatin organization chromatin remodeling R-loop processing system process nervous system process neuromuscular process neuromuscular process controlling balance telomeric 3' overhang formation DNA strand elongation regulation of DNA-templated DNA replication initiation DNA-templated DNA replication DNA replication initiation DNA replication regulation of DNA-templated DNA replication regulation of DNA replication DNA-templated DNA replication maintenance of fidelity DNA strand resection involved in replication fork processing replication fork processing mitotic G2 DNA damage checkpoint signaling mitotic DNA integrity checkpoint signaling mitotic DNA damage checkpoint signaling protein polyubiquitination protein K63-linked ubiquitination protein ubiquitination macromolecule modification protein metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal signal transduction by p53 class mediator DNA damage response, signal transduction by p53 class mediator sexual reproduction reproductive process meiotic cell cycle	membrane-bounded organelle intracellular organelle protein-containing complex cellular anatomical structure intracellular anatomical structure BRCA1-C complex organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cytoplasm cytosol Golgi apparatus endomembrane system membrane-bounded organelle intracellular organelle protein-containing complex cellular anatomical structure intracellular anatomical structure BRCA1-C complex organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cytoplasm cytosol Golgi apparatus endomembrane system inclusion body nuclear inclusion body membraneless organelle intracellular membraneless organelle chromosome chromosome, telomeric region chromosomal region membrane-enclosed lumen nucleolus intracellular organelle lumen organelle lumen nuclear lumen nucleoplasm replication fork Mre11 complex site of double-strand break site of DNA damage nuclear body PML body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR029052	Metallo-dependent phosphatase-like	Homologous Superfamily
A, B	IPR038487	Mre11, capping domain	Homologous Superfamily
A, B	IPR003701	DNA double-strand break repair protein Mre11	Family
A, B	IPR004843	Calcineurin-like, phosphoesterase domain	Domain
A, B	IPR007281	Mre11, DNA-binding	Domain
A, B	IPR041796	DNA double-strand break repair protein Mre11, N-terminal metallophosphatase domain	Domain
C	IPR032429	Nibrin, second BRCT domain	Domain
C	IPR040227	Nibrin-related	Family
C	IPR013908	Nibrin, C-terminal	Domain
C	IPR043014	Nibrin, second BRCT domain superfamily	Homologous Superfamily
C	IPR001357	BRCT domain	Domain
C	IPR036420	BRCT domain superfamily	Homologous Superfamily
C	IPR008984	SMAD/FHA domain superfamily	Homologous Superfamily
C	IPR000253	Forkhead-associated (FHA) domain	Domain
C	IPR016592	Nibrin	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P49959	ataxia-telangiectasia-like disorder 1 microcephaly osteosarcoma ataxia-telangiectasia-like disorder ataxia, early-onset, with oculomotor apraxia and hypoalbuminemia BAP1-related tumor predisposition syndrome hereditary breast carcinoma intellectual disability malignant colon neoplasm Malignant neoplasm of ovary Nijmegen breakage syndrome-like disorder cancer hereditary breast ovarian cancer syndrome large cell medulloblastoma malignant ependymoma ataxia-telangiectasia-like disorder 1 microcephaly osteosarcoma ataxia-telangiectasia-like disorder ataxia, early-onset, with oculomotor apraxia and hypoalbuminemia BAP1-related tumor predisposition syndrome hereditary breast carcinoma intellectual disability malignant colon neoplasm Malignant neoplasm of ovary Nijmegen breakage syndrome-like disorder cancer hereditary breast ovarian cancer syndrome large cell medulloblastoma malignant ependymoma medulloblastoma obstructive sleep apnea syndrome atypical teratoid rhabdoid tumor Charcot-Marie-Tooth disease hereditary hemorrhagic telangiectasia lung cancer
C	Pharos: O60934	Nijmegen breakage syndrome prostate cancer aplastic anemia ovarian cancer breast cancer Neoplasm Recurrence, Local stomatitis lung cancer medulloblastoma cancer Crohn disease rhabdomyosarcoma familial prostate carcinoma ulcerative colitis hematopoietic and lymphoid system neoplasm Nijmegen breakage syndrome prostate cancer aplastic anemia ovarian cancer breast cancer Neoplasm Recurrence, Local stomatitis lung cancer medulloblastoma cancer Crohn disease rhabdomyosarcoma familial prostate carcinoma ulcerative colitis hematopoietic and lymphoid system neoplasm leukemia, acute lymphocytic, susceptibility to, 1 lymphoplasmacytic lymphoma microcephaly non-Hodgkin lymphoma pituitary cancer childhood acute lymphoblastic leukemia Sjogren syndrome gastric carcinoma hereditary breast carcinoma idiopathic aplastic anemia osteogenesis imperfecta plasma cell myeloma congenital anemia psoriasis Emery-Dreifuss muscular dystrophy glioma hereditary breast ovarian cancer syndrome intellectual disability

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.