6RML | pdb_00006rml

Crystal structure of TOPBP1 BRCT0,1,2 in complex with a 53BP1 phosphopeptide

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Protein Modification Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth A]	PTCB-BRCT	e6rmlA2	A: a/b three-layered sandwiches	X: BRCT domain (From Topology)	H: BRCT domain (From Topology)	T: BRCT domain	F: PTCB-BRCT	ECOD (1.6)
B [auth A]	EUF08633	e6rmlA4	A: a/b three-layered sandwiches	X: BRCT domain (From Topology)	H: BRCT domain (From Topology)	T: BRCT domain	F: EUF08633	ECOD (1.6)
A [auth B]	PTCB-BRCT	e6rmlB2	A: a/b three-layered sandwiches	X: BRCT domain (From Topology)	H: BRCT domain (From Topology)	T: BRCT domain	F: PTCB-BRCT	ECOD (1.6)
A [auth B]	EUF08633	e6rmlB4	A: a/b three-layered sandwiches	X: BRCT domain (From Topology)	H: BRCT domain (From Topology)	T: BRCT domain	F: EUF08633	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth A]	3.40.50.10190	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	BRCT domain	CATH (utative)
A [auth B]	3.40.50.10190	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	BRCT domain	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B], B [auth A]	PF00533	BRCA1 C Terminus (BRCT) domain (BRCT)	BRCA1 C Terminus (BRCT) domain	The BRCT domain is found predominantly in proteins involved in cell cycle checkpoint functions responsive to DNA damage. The BRCT domain of XRCC1 forms a homodimer in the crystal structure. This suggests that pairs of BRCT domains associate as homo- ...	The BRCT domain is found predominantly in proteins involved in cell cycle checkpoint functions responsive to DNA damage. The BRCT domain of XRCC1 forms a homodimer in the crystal structure. This suggests that pairs of BRCT domains associate as homo- or heterodimers. BRCT domains are often found as tandem-repeat pairs [2]. Structures of the BRCA1 BRCT domains revealed a basis for a widely utilised head-to-tail BRCT-BRCT oligomerisation mode [3]. This conserved tandem BRCT architecture facilitates formation of the canonical BRCT phospho-peptide interaction cleft at a groove between the BRCT domains. Disease associated missense and nonsense mutations in the BRCA1 BRCT domains disrupt peptide binding by directly occluding this peptide binding groove, or by disrupting key conserved BRCT core folding determinants [5].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C	53BP1	p53 binding protein binding binding histone reader activity histone H4K20me2 reader activity histone H4 reader activity chromatin-protein adaptor activity protein-macromolecule adaptor activity molecular adaptor activity histone binding transcription regulator activity transcription coregulator activity ubiquitin-modified protein reader activity ubiquitin-modified histone reader activity p53 binding protein binding binding histone reader activity histone H4K20me2 reader activity histone H4 reader activity chromatin-protein adaptor activity protein-macromolecule adaptor activity molecular adaptor activity histone binding transcription regulator activity transcription coregulator activity ubiquitin-modified protein reader activity ubiquitin-modified histone reader activity ubiquitin-like protein reader activity transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding DNA-binding transcription factor binding transcription coactivator activity sequence-specific DNA binding DNA binding nucleic acid binding telomeric DNA binding damaged DNA binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of DNA recombination regulation of cellular process regulation of double-strand break repair regulation of cellular response to stress negative regulation of biological process regulation of primary metabolic process negative regulation of DNA repair nucleobase-containing compound metabolic process cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of DNA recombination regulation of cellular process regulation of double-strand break repair regulation of cellular response to stress negative regulation of biological process regulation of primary metabolic process negative regulation of DNA repair nucleobase-containing compound metabolic process regulation of response to stress negative regulation of double-strand break repair negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process recombinational repair regulation of nucleobase-containing compound metabolic process negative regulation of double-strand break repair via homologous recombination double-strand break repair via homologous recombination DNA repair negative regulation of macromolecule metabolic process double-strand break repair regulation of biological process negative regulation of response to stimulus negative regulation of metabolic process DNA recombination biological regulation primary metabolic process DNA metabolic process regulation of macromolecule metabolic process nucleic acid metabolic process regulation of DNA repair regulation of double-strand break repair via homologous recombination negative regulation of DNA recombination regulation of response to stimulus metabolic process negative regulation of DNA metabolic process macromolecule metabolic process regulation of metabolic process regulation of DNA metabolic process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains regulation of leukocyte activation regulation of cell activation B cell activation involved in immune response positive regulation of macromolecule biosynthetic process multicellular organism development positive regulation of immune response regulation of immune system process positive regulation of macromolecule metabolic process system development positive regulation of DNA recombination positive regulation of immunoglobulin mediated immune response immune response immune effector process regulation of gene expression biosynthetic process positive regulation of DNA metabolic process B cell mediated immunity positive regulation of production of molecular mediator of immune response regulation of macromolecule biosynthetic process immunoglobulin production regulation of developmental process positive regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains somatic cell DNA recombination positive regulation of lymphocyte activation somatic diversification of immunoglobulins involved in immune response somatic recombination of immunoglobulin gene segments positive regulation of biosynthetic process regulation of immunoglobulin mediated immune response positive regulation of isotype switching regulation of B cell activation leukocyte activation involved in immune response positive regulation of immune effector process positive regulation of cellular process positive regulation of immunoglobulin production production of molecular mediator of immune response regulation of isotype switching cell activation macromolecule biosynthetic process positive regulation of gene expression immune system process somatic diversification of immune receptors via germline recombination within a single locus regulation of lymphocyte activation multicellular organismal process regulation of immune effector process lymphocyte mediated immunity positive regulation of leukocyte mediated immunity cell activation involved in immune response positive regulation of developmental process positive regulation of cell activation positive regulation of metabolic process positive regulation of leukocyte activation anatomical structure development leukocyte mediated immunity somatic diversification of immune receptors positive regulation of adaptive immune response positive regulation of immune system process somatic recombination of immunoglobulin genes involved in immune response developmental process regulation of adaptive immune response regulation of B cell mediated immunity somatic diversification of immunoglobulins regulation of leukocyte mediated immunity positive regulation of multicellular organismal process regulation of immune response regulation of production of molecular mediator of immune response isotype switching immune system development positive regulation of lymphocyte mediated immunity immunoglobulin production involved in immunoglobulin-mediated immune response positive regulation of biological process lymphocyte activation positive regulation of B cell mediated immunity leukocyte activation positive regulation of response to stimulus regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains regulation of multicellular organismal process lymphocyte activation involved in immune response regulation of biosynthetic process B cell activation gene expression positive regulation of B cell activation adaptive immune response immunoglobulin mediated immune response regulation of immunoglobulin production regulation of lymphocyte mediated immunity double-strand break repair via classical nonhomologous end joining double-strand break repair via nonhomologous end joining localization protein localization to chromosome protein localization to organelle macromolecule localization protein localization to site of double-strand break intracellular protein localization positive regulation of cell communication positive regulation of signal transduction signaling positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator regulation of signal transduction regulation of programmed cell death regulation of intrinsic apoptotic signaling pathway intracellular signal transduction cell communication positive regulation of apoptotic signaling pathway regulation of intracellular signal transduction regulation of signal transduction by p53 class mediator positive regulation of signal transduction by p53 class mediator signal transduction intrinsic apoptotic signaling pathway regulation of signaling positive regulation of programmed cell death regulation of apoptotic process positive regulation of intracellular signal transduction signal transduction by p53 class mediator cell death positive regulation of apoptotic process apoptotic signaling pathway regulation of cell communication intrinsic apoptotic signaling pathway by p53 class mediator positive regulation of intrinsic apoptotic signaling pathway apoptotic process regulation of intrinsic apoptotic signaling pathway by p53 class mediator programmed cell death regulation of apoptotic signaling pathway positive regulation of signaling response to X-ray cellular response to ionizing radiation cellular response to radiation cellular response to environmental stimulus cellular response to X-ray response to ionizing radiation response to radiation response to abiotic stimulus cellular response to abiotic stimulus positive regulation of DNA-templated transcription RNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of RNA biosynthetic process nucleobase-containing compound biosynthetic process positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process regulation of DNA-templated transcription cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis transcription by RNA polymerase II regulation of transcription by RNA polymerase II positive regulation of transcription by RNA polymerase II DNA damage checkpoint signaling regulation of cell cycle phase transition negative regulation of cell cycle cell cycle phase transition negative regulation of cell cycle phase transition cell cycle regulation of cell cycle cell cycle process regulation of cell cycle process DNA integrity checkpoint signaling negative regulation of cell cycle process cell cycle checkpoint signaling signal transduction in response to DNA damage	protein-containing complex catalytic complex DNA repair complex cellular anatomical structure intracellular anatomical structure cytoplasm membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen protein-containing complex catalytic complex DNA repair complex cellular anatomical structure intracellular anatomical structure cytoplasm membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen intracellular membraneless organelle chromosome chromosomal region kinetochore membraneless organelle chromosome, centromeric region condensed chromosome, centromeric region supramolecular complex condensed chromosome replication fork site of double-strand break site of DNA damage nuclear body chromosome, telomeric region
A [auth B], B [auth A]	DNA topoisomerase 2-binding protein 1	chromatin-protein adaptor activity protein-macromolecule adaptor activity molecular adaptor activity DNA binding binding nucleic acid binding 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 chromatin-protein adaptor activity protein-macromolecule adaptor activity molecular adaptor activity DNA binding binding nucleic acid binding 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 identical protein binding protein binding phosphorylation-dependent protein binding modification-dependent protein binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of cellular process 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 cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of cellular process 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 cell communication mitotic G2/M transition checkpoint regulation of mitotic cell cycle mitotic DNA integrity checkpoint signaling negative regulation of cellular process negative regulation of cell cycle phase transition signal transduction cell cycle DNA replication checkpoint signaling regulation of cell cycle cell cycle process cell cycle G2/M phase transition regulation of biological process mitotic DNA replication checkpoint signaling negative regulation of mitotic cell cycle phase transition regulation of G2/M transition of mitotic cell cycle regulation of cell cycle process biological regulation DNA integrity checkpoint signaling 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 nucleobase-containing compound metabolic process DNA-templated DNA replication DNA replication DNA replication initiation metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process double-strand break repair via classical nonhomologous end joining double-strand break repair double-strand break repair via nonhomologous end joining DNA repair cellular component organization organelle organization chromosome organization cellular component organization or biogenesis 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 response to ionizing radiation response to radiation response to abiotic stimulus DNA damage checkpoint signaling mitotic G2 DNA damage checkpoint signaling mitotic DNA damage checkpoint signaling signal transduction in response to DNA damage recombinational repair double-strand break repair via homologous recombination double-strand break repair via alternative nonhomologous end joining broken chromosome clustering	intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton spindle organelle membraneless organelle intracellular membraneless organelle spindle pole microtubule cytoskeleton membrane-bounded organelle condensed nuclear chromosome nucleus membrane-enclosed lumen intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton spindle organelle membraneless organelle intracellular membraneless organelle spindle pole microtubule cytoskeleton membrane-bounded organelle condensed nuclear chromosome nucleus membrane-enclosed lumen nuclear chromosome chromosome intracellular membrane-bounded organelle intracellular organelle lumen organelle lumen condensed chromosome nuclear lumen actin cytoskeleton centrosome microtubule organizing center cell periphery plasma membrane membrane cytoplasm nucleoplasm protein-containing complex BRCA1-B complex nuclear protein-containing complex male germ cell nucleus germ cell nucleus site of double-strand break site of DNA damage nuclear body PML body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C	IPR047252	TP53-binding protein 1-like	Family
C	IPR014722	Large ribosomal subunit protein uL2, domain 2	Homologous Superfamily
C	IPR015125	Tumour suppressor p53-binding protein-1, Tudor domain	Domain
C	IPR001357	BRCT domain	Domain
C	IPR036420	BRCT domain superfamily	Homologous Superfamily
C	IPR047249	TP53-binding protein 1-like, first BRCT domain	Domain
C	IPR047250	TP53-binding protein 1-like, second BRCT domain	Domain
A [auth B], B [auth A]	IPR001357	BRCT domain	Domain
A [auth B], B [auth A]	IPR036420	BRCT domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR035960	Secretoglobin superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR049936	TopBP1, eighth BRCT domain	Domain
A [auth B], B [auth A]	IPR044737	TopBP1, first BRCT domain	Domain
A [auth B], B [auth A]	IPR049542	TopBP1-like, BRCT0 domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C	Pharos: Q12888	astrocytic tumor lung carcinoma oligodendroglioma Pick disease cancer malignant ependymoma osteosarcoma lung cancer medulloblastoma ovarian cancer
A [auth B], B [auth A]	Pharos: Q92547	B-cell chronic lymphocytic leukemia lymphoplasmacytic lymphoma medulloblastoma pancreatic intraductal papillary-mucinous neoplasm diabetes mellitus malignant colon neoplasm non-small cell lung carcinoma lung cancer malignant mesothelioma ovarian cancer

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
C	TPO	Parent Component: THR RESID: AA0038 PSI-MOD : O-phospho-L-threonine MOD:00047

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.