TOP2B
Sign in to saveAlso known as TOPIIB, top2beta, topoisomerase (DNA) II beta, DNA topoisomerase II beta, BILU
DNA topoisomerase 2-beta is an enzyme that in humans is encoded by the TOP2B gene.
Gene data
TOP2B- Name
- DNA topoisomerase II beta
- Type
- protein-coding
- Position
- 25,597,978–25,664,973 (−)
- Aliases
- BILU, TOPIIB, top2beta
- Ensembl
- ENSG00000077097
- RefSeq RNA
- NM_001068.3, NM_001330700.2, XM_011534057.4, XM_047448821.1, XM_047448822.1
- RefSeq protein
- NP_001059.2, NP_001317629.1, XP_011532359.1, XP_047304777.1, XP_047304778.1
This gene encodes a DNA topoisomerase, an enzyme that controls and alters the topologic states of DNA during transcription. This nuclear enzyme is involved in processes such as chromosome condensation, chromatid separation, and the relief of torsional stress that occurs during DNA transcription and replication. It catalyzes the transient breaking and rejoining of two strands of duplex DNA which allows the strands to pass through one another, thus altering the topology of DNA. Two forms of this enzyme exist as likely products of a gene duplication event. The gene encoding this form, beta, is localized to chromosome 3 and the alpha form is localized to chromosome 17. The gene encoding this enzyme functions as the target for several anticancer agents and a variety of mutations in this gene have been associated with the development of drug resistance. Reduced activity of this enzyme may also play a role in ataxia-telangiectasia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2016].
Gene Ontology
Biological process
Molecular function
Pathways
via MyGene.info
Gene · Ensembl
DNA topoisomerase II beta
- Symbol
- TOP2B
- Biotype
- Protein coding
- Organism
- Homo sapiens
- Location
- 3:25,597,978-25,664,973
- Strand
- Reverse (−)
- Assembly
- GRCh38
via Ensembl · EMBL-EBI
Wikidata facts
- Image
- 4j3ncartoon.png
Show 5 more facts
- HomoloGene ID
- 134711
- exact match
- identifiers.org/ncbigene/7155
- genomic end
- 25664907
- genomic start
- 25597984
- cytogenetic location
- 3p24.2
Sources (4)
via Wikidata · CC0
~5 min read
Article
7 sectionsContents
- Function
- Neuronal activity
- Other TOP2B and DNA interactions
- Interactions
- In other species
- References
- Further reading
DNA topoisomerase 2-beta is an enzyme that in humans is encoded by the TOP2B gene.
== Function ==