Annotations: 2COU

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	BRCT-2 domain-like	8099111	4004711	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	BRCT domain-like	8099112	3000159	SCOP2 (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	PTCB-BRCT	e2couA1	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)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.10190	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	BRCT domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00533	BRCA1 C Terminus (BRCT) domain (BRCT)	BRCA1 C Terminus (BRCT) domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	ECT2 protein	small GTPase binding protein binding binding enzyme binding GTPase binding GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity identical protein binding protein homodimerization activity small GTPase binding protein binding binding enzyme binding GTPase binding GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity identical protein binding protein homodimerization activity protein dimerization activity guanyl-nucleotide exchange factor activity	assembly of actomyosin apparatus involved in cytokinesis regulation of cytoskeleton organization regulation of cellular process regulation of cellular component organization regulation of actin filament-based process cytoskeleton-dependent cytokinesis regulation of cytokinesis, actomyosin contractile ring assembly actomyosin contractile ring assembly cellular component biogenesis cellular component organization cellular component assembly cortical actin cytoskeleton organization actin filament-based process cellular component organization or biogenesis assembly of actomyosin apparatus involved in cytokinesis regulation of cytoskeleton organization regulation of cellular process regulation of cellular component organization regulation of actin filament-based process cytoskeleton-dependent cytokinesis regulation of cytokinesis, actomyosin contractile ring assembly actomyosin contractile ring assembly cellular component biogenesis cellular component organization cellular component assembly cortical actin cytoskeleton organization actin filament-based process cellular component organization or biogenesis cell cycle regulation of cell cycle cell cycle process regulation of biological process actin cytoskeleton organization actomyosin structure organization regulation of cell cycle process cortical cytoskeleton organization biological regulation cytokinesis regulation of cytokinetic process regulation of cellular component biogenesis regulation of organelle organization organelle organization regulation of actomyosin structure organization cytokinetic process regulation of actin cytoskeleton organization cellular process actomyosin contractile ring organization cell division cytoskeleton organization regulation of cytokinesis positive regulation of cell division positive regulation of biological process positive regulation of cell cycle regulation of cell division positive regulation of cytokinesis positive regulation of cell cycle process positive regulation of cellular process developmental process cellular developmental process cell differentiation mitotic cell cycle process mitotic cytokinesis mitotic cell cycle protein localization establishment of protein localization cellular localization nitrogen compound transport transport establishment of localization localization protein transport cellular macromolecule localization macromolecule localization positive regulation of molecular function regulation of molecular function positive regulation of hydrolase activity regulation of catalytic activity regulation of hydrolase activity positive regulation of catalytic activity regulation of GTPase activity positive regulation of GTPase activity positive regulation of programmed cell death regulation of apoptotic process regulation of programmed cell death cell death positive regulation of apoptotic process apoptotic process programmed cell death cellular response to stimulus response to ionizing radiation response to stimulus cellular response to ionizing radiation response to radiation response to abiotic stimulus cellular response to radiation cellular response to abiotic stimulus cellular response to environmental stimulus regulation of mitotic cytokinetic process positive regulation of mitotic cytokinesis mitotic cytokinetic process regulation of mitotic cytokinesis positive regulation of mitotic cytokinetic process regulation of localization regulation of protein localization nucleocytoplasmic transport positive regulation of nucleocytoplasmic transport nuclear transport positive regulation of establishment of protein localization regulation of protein localization to nucleus positive regulation of protein transport import into nucleus regulation of protein import into nucleus establishment of localization in cell protein import into nucleus positive regulation of intracellular transport regulation of intracellular transport regulation of transport positive regulation of protein localization to nucleus regulation of establishment of protein localization positive regulation of protein import into nucleus intracellular transport regulation of nucleocytoplasmic transport protein localization to nucleus regulation of protein transport positive regulation of transport establishment of protein localization to organelle regulation of cellular localization protein localization to organelle positive regulation of protein localization regulation of intracellular protein transport positive regulation of intracellular protein transport intracellular protein transport regulation of protein modification process positive regulation of phosphorylation regulation of protein phosphorylation positive regulation of protein metabolic process regulation of transferase activity positive regulation of phosphate metabolic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of protein modification process regulation of phosphate metabolic process phosphate-containing compound metabolic process positive regulation of macromolecule metabolic process protein metabolic process positive regulation of protein kinase activity phosphorus metabolic process protein modification process positive regulation of protein phosphorylation protein phosphorylation positive regulation of transferase activity positive regulation of phosphorus metabolic process phosphorylation regulation of protein metabolic process primary metabolic process regulation of protein kinase activity regulation of macromolecule metabolic process positive regulation of kinase activity regulation of kinase activity activation of protein kinase activity macromolecule modification regulation of phosphorylation regulation of phosphorus metabolic process metabolic process macromolecule metabolic process regulation of metabolic process cellular response to metal ion cellular response to chemical stimulus response to metal ion response to chemical cellular response to calcium ion response to calcium ion bicellular tight junction assembly tight junction organization apical junction assembly cell junction organization cell junction assembly tight junction assembly cell-cell junction assembly cell-cell junction organization cellular response to oxidative stress response to oxygen-containing compound cellular response to chemical stress cellular response to oxygen-containing compound cellular response to hydrogen peroxide response to reactive oxygen species response to hydrogen peroxide response to oxidative stress cellular response to reactive oxygen species cellular response to stress response to stress multicellular organismal process regulation of developmental process regulation of cell differentiation positive regulation of neuron differentiation positive regulation of developmental process neurogenesis multicellular organism development neuron differentiation positive regulation of cell differentiation anatomical structure development system development nervous system development generation of neurons regulation of neuron differentiation anatomical structure morphogenesis cell morphogenesis activation of GTPase activity signaling signal transduction intracellular signal transduction cell communication protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization establishment of organelle localization attachment of spindle microtubules to kinetochore metaphase chromosome alignment chromosome localization organelle localization nuclear chromosome segregation regulation of attachment of spindle microtubules to kinetochore establishment of chromosome localization chromosome segregation	midbody cellular anatomical structure cell-cell junction anchoring junction cell junction intracellular anatomical structure cytoplasm cytosol intracellular organelle mitotic spindle cytoskeleton spindle organelle membraneless organelle midbody cellular anatomical structure cell-cell junction anchoring junction cell junction intracellular anatomical structure cytoplasm cytosol intracellular organelle mitotic spindle cytoskeleton spindle organelle membraneless organelle intracellular membraneless organelle microtubule cytoskeleton cell division site cell periphery cleavage furrow membrane plasma membrane plasma membrane region apical junction complex bicellular tight junction tight junction protein-containing complex centralspindlin complex intracellular protein-containing complex membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear body nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000219	Dbl homology (DH) domain	Domain
A	IPR001357	BRCT domain	Domain
A	IPR011993	PH-like domain superfamily	Homologous Superfamily
A	IPR001331	Guanine-nucleotide dissociation stimulator, CDC24, conserved site	Conserved Site
A	IPR036420	BRCT domain superfamily	Homologous Superfamily
A	IPR026817	Guanine nucleotide exchange factor Ect2	Family
A	IPR049396	ECT2, BRCT0 domain	Domain
A	IPR035899	Dbl homology (DH) domain superfamily	Homologous Superfamily
A	IPR049395	ECT2, PH domain	Domain

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.