Target General Infomation
Target ID
T85733
Former ID
TTDR01192
Target Name
DNA topoisomerase II, beta isozyme
Gene Name
TOP2B
Synonyms
TOP2beta; Topo IIbeta; TOP2B
Target Type
Successful
Disease Chemoprotection [ICD9: 191; ICD10: C71]
Solid tumours [ICD9: 140-199, 210-229; ICD10: C00-D48]
Function
Control of topological states of DNA by transient breakage and subsequent rejoining of DNA strands. Topoisomerase II makes double-strand breaks.
BioChemical Class
ATP-hydrolyzing DNA topoisomerase
Target Validation
T85733
UniProt ID
EC Number
EC 5.99.1.3
Sequence
MAKSGGCGAGAGVGGGNGALTWVTLFDQNNAAKKEESETANKNDSSKKLSVERVYQKKTQ
LEHILLRPDTYIGSVEPLTQFMWVYDEDVGMNCREVTFVPGLYKIFDEILVNAADNKQRD
KNMTCIKVSIDPESNIISIWNNGKGIPVVEHKVEKVYVPALIFGQLLTSSNYDDDEKKVT
GGRNGYGAKLCNIFSTKFTVETACKEYKHSFKQTWMNNMMKTSEAKIKHFDGEDYTCITF
QPDLSKFKMEKLDKDIVALMTRRAYDLAGSCRGVKVMFNGKKLPVNGFRSYVDLYVKDKL
DETGVALKVIHELANERWDVCLTLSEKGFQQISFVNSIATTKGGRHVDYVVDQVVGKLIE
VVKKKNKAGVSVKPFQVKNHIWVFINCLIENPTFDSQTKENMTLQPKSFGSKCQLSEKFF
KAASNCGIVESILNWVKFKAQTQLNKKCSSVKYSKIKGIPKLDDANDAGGKHSLECTLIL
TEGDSAKSLAVSGLGVIGRDRYGVFPLRGKILNVREASHKQIMENAEINNIIKIVGLQYK
KSYDDAESLKTLRYGKIMIMTDQDQDGSHIKGLLINFIHHNWPSLLKHGFLEEFITPIVK
ASKNKQELSFYSIPEFDEWKKHIENQKAWKIKYYKGLGTSTAKEAKEYFADMERHRILFR
YAGPEDDAAITLAFSKKKIDDRKEWLTNFMEDRRQRRLHGLPEQFLYGTATKHLTYNDFI
NKELILFSNSDNERSIPSLVDGFKPGQRKVLFTCFKRNDKREVKVAQLAGSVAEMSAYHH
GEQALMMTIVNLAQNFVGSNNINLLQPIGQFGTRLHGGKDAASPRYIFTMLSTLARLLFP
AVDDNLLKFLYDDNQRVEPEWYIPIIPMVLINGAEGIGTGWACKLPNYDAREIVNNVRRM
LDGLDPHPMLPNYKNFKGTIQELGQNQYAVSGEIFVVDRNTVEITELPVRTWTQVYKEQV
LEPMLNGTDKTPALISDYKEYHTDTTVKFVVKMTEEKLAQAEAAGLHKVFKLQTTLTCNS
MVLFDHMGCLKKYETVQDILKEFFDLRLSYYGLRKEWLVGMLGAESTKLNNQARFILEKI
QGKITIENRSKKDLIQMLVQRGYESDPVKAWKEAQEKAAEEDETQNQHDDSSSDSGTPSG
PDFNYILNMSLWSLTKEKVEELIKQRDAKGREVNDLKRKSPSDLWKEDLAAFVEELDKVE
SQEREDVLAGMSGKAIKGKVGKPKVKKLQLEETMPSPYGRRIIPEITAMKADASKKLLKK
KKGDLDTAAVKVEFDEEFSGAPVEGAGEEALTPSVPINKGPKPKREKKEPGTRVRKTPTS
SGKPSAKKVKKRNPWSDDESKSESDLEETEPVVIPRDSLLRRAAAERPKYTFDFSEEEDD
DADDDDDDNNDLEELKVKASPITNDGEDEFVPSDGLDKDEYTFSPGKSKATPEKSLHDKK
SQDFGNLFSFPSYSQKSEDDSAKFDSNEEDSASVFSPSFGLKQTDKVPSKTVAAKKGKPS
SDTVPKPKRAPKQKKVVEAVNSDSDSEFGIPKKTTTPKGKGRGAKKRKASGSENEGDYNP
GRKTSKTTSKKPKKTSFDQDSDVDIFPSDFPTEPPSLPRTGRARKEVKYFAESDEEEDDV
DFAMFN
Drugs and Mode of Action
Drug(s) Icrf-187 Drug Info Approved Chemoprotection [544735], [551871]
XB-947 Drug Info Phase 1 Solid tumours [544092]
XK-469 Drug Info Phase 1 Solid tumours [521500]
A-62176 Drug Info Terminated Discovery agent [546382]
Inhibitor 3'-THIO-THYMIDINE-5'-PHOSPHATE Drug Info [551374]
A-62176 Drug Info [534726]
Icrf-187 Drug Info [551393]
Phosphoaminophosphonic Acid-Adenylate Ester Drug Info [551374]
Modulator XB-947 Drug Info [544018]
XK-469 Drug Info
Pathways
PANTHER Pathway DNA replication
References
Ref 521500ClinicalTrials.gov (NCT00028522) R(+)XK469 in Treating Patients With Advanced Neuroblastoma. U.S. National Institutes of Health.
Ref 544092A phase I and pharmacokinetic study of the quinoxaline antitumour Agent R(+)XK469 in patients with advanced solid tumours. Eur J Cancer. 2008 August; 44(12): 1684-1692.
Ref 544735Trusted, scientifically sound profiles of drug programs, clinical trials, safety reports, and company deals, written by scientists. Springer. 2015. Adis Insight (drug id 800000788)
Ref 546382Trusted, scientifically sound profiles of drug programs, clinical trials, safety reports, and company deals, written by scientists. Springer. 2015. Adis Insight (drug id 800007798)
Ref 551871Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health & Human Services. 2015
Ref 534726J Med Chem. 1998 Oct 22;41(22):4273-8.Design of new topoisomerase II inhibitors based upon a quinobenzoxazine self-assembly model.
Ref 544018XK469, a selective topoisomerase IIbeta poison. Proc Natl Acad Sci U S A. 1999 October 12; 96(21): 12168-12173.
Ref 551374The Protein Data Bank. Nucleic Acids Res. 2000 Jan 1;28(1):235-42.
Ref 551393How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6.

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