NP_001059.2
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NCBI GenBank Nucleotide #
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UniProt Primary Accession #
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UniProt Secondary Accession #
UniProt Related Accession #
NCBI Official Full Name
DNA topoisomerase 2-beta
NCBI Official Synonym Full Names
topoisomerase (DNA) II beta
NCBI Protein Information
DNA topoisomerase 2-beta
UniProt Protein Name
DNA topoisomerase 2-beta
UniProt Synonym Protein Names
DNA topoisomerase II, beta isozyme
UniProt Entry Name
TOP2B_HUMAN
NCBI Summary for TOP2B
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 of this gene results in two transcript variants; however, the second variant has not yet been fully described. [provided by RefSeq, Jul 2008]
UniProt Comments for TOP2B
TOP2B: Control of topological states of DNA by transient breakage and subsequent rejoining of DNA strands. Topoisomerase II makes double-strand breaks. Indirectly involved in vitamin D- coupled transcription regulation via its association with the WINAC complex, a chromatin-remodeling complex recruited by vitamin D receptor (VDR), which is required for the ligand-bound VDR- mediated transrepression of the CYP27B1 gene. Belongs to the type II topoisomerase family. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: EC 5.99.1.3; Cell development/differentiation; Motility/polarity/chemotaxis; Topoisomerase; DNA-binding; Nucleolus
Chromosomal Location of Human Ortholog: 3p24
Cellular Component: nucleoplasm; heterochromatin; DNA topoisomerase complex (ATP-hydrolyzing); cytoplasm; nucleolus; nucleus; cytosol
Molecular Function: protein C-terminus binding; DNA topoisomerase (ATP-hydrolyzing) activity; enzyme binding; protein kinase C binding; protein heterodimerization activity; histone deacetylase binding; metal ion binding; chromatin binding; DNA bending activity; ATP binding
Biological Process: DNA unwinding during replication; mitotic recombination; DNA topological change; axonogenesis; forebrain development; sister chromatid segregation; neuron migration; resolution of meiotic joint molecules as recombinants
Research Articles on TOP2B
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Products associated with anti-TOP2B antibody
Diseases associated with anti-TOP2B antibody
Organs/Tissues associated with anti-TOP2B antibody
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