Annotations: 9CAJ

Human TOP3B-TDRD3 core complex in pre-cleavage state with ssDNA 5'-ACAGATATT-3

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Reovirus_L2_GTase	e9cajB1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Reovirus_L2_GTase	ECOD (v295)
A	Reovirus_L2_GTase	e9cajA1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Reovirus_L2_GTase	ECOD (v295)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF08585	RMI1, N-terminal OB-fold domain (RMI1_N_C)	RMI1, N-terminal OB-fold domain	This is the OB-fold domain found at the N-terminal of RecQ-mediated genome instability protein 1 (RMI1), which forms a stable complex with Bloom syndrome protein BLM and DNA topoisomerase 3-alpha [1-3].	Domain
A	PF01131	DNA topoisomerase (Topoisom_bac)	DNA topoisomerase	-	Family
A	PF01751	Toprim domain (Toprim)	Toprim domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C	DNA (5'-D(PAPCPAPGPAPTPAPTP*T)-3')	-	-	-
B	Tudor domain-containing protein 3	histone reader activity histone H4 reader activity chromatin-protein adaptor activity protein-macromolecule adaptor activity molecular adaptor activity chromatin binding binding transcription coactivator activity transcription regulator activity transcription coregulator activity RNA binding nucleic acid binding histone H3 reader activity	chromosome organization primary metabolic process DNA conformation change DNA metabolic process nucleic acid metabolic process cellular component organization nucleobase-containing compound metabolic process DNA topological change organelle organization cellular process metabolic process cellular component organization or biogenesis macromolecule metabolic process regulation of cellular process chromosome organization primary metabolic process DNA conformation change DNA metabolic process nucleic acid metabolic process cellular component organization nucleobase-containing compound metabolic process DNA topological change organelle organization cellular process metabolic process cellular component organization or biogenesis macromolecule metabolic process regulation of cellular process negative regulation of biological process cellular component biogenesis siRNA-mediated heterochromatin formation cellular component assembly chromatin organization negative regulation of cellular process chromatin remodeling negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process heterochromatin formation epigenetic regulation of gene expression negative regulation of metabolic process biological regulation heterochromatin organization regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulatory ncRNA-mediated gene silencing regulation of gene expression negative regulation of gene expression regulatory ncRNA-mediated heterochromatin formation biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of gene expression, epigenetic regulation of macromolecule biosynthetic process regulation of metabolic process	protein-containing complex DNA topoisomerase III-beta-TDRD3 complex cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen protein-containing complex DNA topoisomerase III-beta-TDRD3 complex cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen
A	DNA topoisomerase 3-beta-1	DNA binding binding nucleic acid binding RNA topoisomerase activity nucleic acid conformation isomerase activity isomerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid macromolecular conformation isomerase activity catalytic activity DNA topoisomerase type I (single strand cut, ATP-independent) activity catalytic activity, acting on DNA DNA topoisomerase activity RNA binding	cellular response to stimulus response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process DNA repair chromosome organization cellular response to stimulus response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process DNA repair chromosome organization DNA conformation change cellular component organization DNA topological change organelle organization cellular component organization or biogenesis DNA recombination	intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle chromosome condensed chromosome membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR002999	Tudor domain	Domain
B	IPR047379	Tudor domain-containing protein 3, Tudor domain	Domain
B	IPR013894	RecQ mediated genome instability protein 1, OB-fold domain	Domain
B	IPR042470	RecQ mediated genome instability protein, N-terminal OB-fold domain superfamily	Homologous Superfamily
B	IPR041915	Tudor domain-containing protein 3, UBA domain	Domain
B	IPR009060	UBA-like superfamily	Homologous Superfamily
B	IPR015940	Ubiquitin-associated domain	Domain
A	IPR013497	DNA topoisomerase, type IA, central	Domain
A	IPR003602	DNA topoisomerase, type IA, DNA-binding domain	Domain
A	IPR023405	DNA topoisomerase, type IA, core domain	Homologous Superfamily
A	IPR013825	DNA topoisomerase, type IA, central region, subdomain 2	Homologous Superfamily
A	IPR003601	DNA topoisomerase, type IA, domain 2	Domain
A	IPR000380	DNA topoisomerase, type IA	Family
A	IPR013826	DNA topoisomerase, type IA, central region, subdomain 3	Homologous Superfamily
A	IPR006171	TOPRIM domain	Domain
A	IPR023406	DNA topoisomerase, type IA, active site	Active Site
A	IPR056452	DNA topoisomerase 3-beta, zinc ribbon domain	Domain
A	IPR034144	DNA topoisomerase 3-like, TOPRIM domain	Domain
A	IPR013824	DNA topoisomerase, type IA, central region, subdomain 1	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B	: Q9H7E2	lung cancer ovarian cancer medulloblastoma psoriasis osteosarcoma
A	: O95985	schizophrenia

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.