Top2b DNA topoisomerase II beta [Rattus norvegicus (Norway rat)] - Gene

Summary

Official Symbol: Top2bprovided by RGD
Official Full Name: DNA topoisomerase II betaprovided by RGD
Primary source: RGD:1586156
See related: EnsemblRapid:ENSRNOG00000048795 AllianceGenome:RGD:1586156
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Rattus norvegicus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Rattus
Summary: Enables ribonucleoprotein complex binding activity. Involved in several processes, including cellular response to ATP; cellular response to hydrogen peroxide; and positive regulation of double-strand break repair via nonhomologous end joining. Predicted to be located in cytosol; heterochromatin; and nuclear lumen. Orthologous to human TOP2B (DNA topoisomerase II beta). [provided by Alliance of Genome Resources, Dec 2024]
Expression: Biased expression in Thymus (RPKM 391.8), Lung (RPKM 371.1) and 9 other tissues See more
Orthologs: human mouse all
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Genomic context

Location:: 15p16

Exon count:: 36

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCr8 (GCF_036323735.1)	15	NC_086033.1 (11482089..11542464, complement)
RS_2023_06	previous assembly	mRatBN7.2 (GCF_015227675.2)	15	NC_051350.1 (9051340..9111721, complement)
106	previous assembly	Rnor_6.0 (GCF_000001895.5)	15	NC_005114.4 (10262972..10319741, complement)

Chromosome 15 - NC_086033.1 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Suppression of host DNA-repair pathways that remove TOP2bcc trigger HSV-1 reactivation. Moreover, perturbation of AKT phosphorylation dynamics by downregulating the PHLPP1 phosphatase led to AKT mis-localization and disruption of DSB-induced HSV-1 reactivation.
Title: TOP2β-Dependent Nuclear DNA Damage Shapes Extracellular Growth Factor Responses via Dynamic AKT Phosphorylation to Control Virus Latency.
Data indicate that dexrazoxane may protect cardiomyocytes via its catalytic topoisomerase II (TOP2) inhibitory activity.
Title: Catalytic inhibitors of topoisomerase II differently modulate the toxicity of anthracyclines in cardiac and cancer cells.
Suggest a role for TopoIIbeta in the repair of N-ethyl N-nitroso urea-mediated strand breaks via base excision repair pathway.
Title: Topoisomerase IIβ regulates base excision repair capacity of neurons.
TopoIIbeta is an essential component in DSBs repair in primary neurons in both Ku70 and PARP-1 dependent pathways.
Title: Topoisomerase IIβ associates with Ku70 and PARP-1 during double strand break repair of DNA in neurons.
hnRNP U/SAF-A/SP120 regulates the enzyme DNA Topoisomerase IIbeta in dual ways
Title: Regulation of DNA Topoisomerase IIbeta through RNA-dependent association with heterogeneous nuclear ribonucleoprotein U (hnRNP U).
Topoisomerase IIbeta activates a subset of neuronal genes that are repressed in AT-rich genomic environment
Title: Topoisomerase IIbeta activates a subset of neuronal genes that are repressed in AT-rich genomic environment.
analysis of repair of topoisomerase II-DNA covalent complexes
Title: A protease pathway for the repair of topoisomerase II-DNA covalent complexes.

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

Top2b (e-PCR), detects polymorphism
- UniSTS:526911

Gene Ontology Provided by RGD

Function	Evidence Code	Pubs
enables ATP binding	IEA Inferred from Electronic Annotation more info
enables DNA binding	IEA Inferred from Electronic Annotation more info
enables DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity	ISO Inferred from Sequence Orthology more info
enables chromatin binding	ISO Inferred from Sequence Orthology more info
enables metal ion binding	IEA Inferred from Electronic Annotation more info
enables ribonucleoprotein complex binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
involved_in B cell differentiation	ISO Inferred from Sequence Orthology more info
involved_in DNA topological change	ISO Inferred from Sequence Orthology more info
acts_upstream_of_or_within axonogenesis	ISO Inferred from Sequence Orthology more info
involved_in cellular response to ATP	IDA Inferred from Direct Assay more info	PubMed
involved_in cellular response to hydrogen peroxide	IDA Inferred from Direct Assay more info	PubMed
involved_in cellular senescence	IEP Inferred from Expression Pattern more info	PubMed
acts_upstream_of_or_within forebrain development	ISO Inferred from Sequence Orthology more info
acts_upstream_of_or_within neuron migration	ISO Inferred from Sequence Orthology more info
involved_in positive regulation of double-strand break repair via nonhomologous end joining	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in positive regulation of single stranded viral RNA replication via double stranded DNA intermediate	ISO Inferred from Sequence Orthology more info
involved_in resolution of meiotic recombination intermediates	IBA Inferred from Biological aspect of Ancestor more info
involved_in sister chromatid segregation	IBA Inferred from Biological aspect of Ancestor more info

Component	Evidence Code	Pubs
NOT located_in chromosome	ISO Inferred from Sequence Orthology more info
located_in cytosol	ISO Inferred from Sequence Orthology more info
located_in heterochromatin	ISO Inferred from Sequence Orthology more info
NOT located_in nucleolus	ISO Inferred from Sequence Orthology more info
located_in nucleolus	ISO Inferred from Sequence Orthology more info
located_in nucleoplasm	ISO Inferred from Sequence Orthology more info
is_active_in nucleus	IBA Inferred from Biological aspect of Ancestor more info
located_in nucleus	ISO Inferred from Sequence Orthology more info

General protein information

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Preferred Names: DNA topoisomerase 2-beta

Names: topoisomerase (DNA) II beta; topoisomerase II beta

NP_001094328.2

EC 5.6.2.3

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.