Topoisomerase
Topoisomerases are enzymes that regulate the overwinding or underwinding of DNA. The winding problem of DNA arises due to the intertwined nature of its double-helical structure. Topoisomerases are isomerase enzymes that act on the topology of DNA. Type I topoisomerase cuts one strand of a DNA double helix, relaxation occurs, and then the cut strand is reannealed. Type I topoisomerases are subdivided into two subclasses: type IA topoisomerases, which share many structural and mechanistic features with the type II topoisomerases, and type IB topoisomerases, which utilize a controlled rotary mechanism. Type II topoisomerase cuts both strands of one DNA double helix, pass another unbroken DNA helix through it, and then reanneal the cut strands. This class is also split into two subclasses: type IIA and type IIB topoisomerases, which possess similar structure and mechanisms.
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Topoisomerase Inhibitors
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Topoisomerase Agonists
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Topoisomerase Modulator
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Topoisomerase Inducer
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Topoisomerase Degraders
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Topoisomerase Controls
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Topoisomerase Ligands
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Topoisomerase Proteins
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DNA topoisomerase II Proteins
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Topoisomerase Verwandte Produkte (838)
Verwandte Produkte (838)
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Recombinant Proteins (1)
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Antibodies (4)
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Topoisomerase Isoform Comparison
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Intoplicine (Standard)
0 ImagesArt. -Nr.: HY-101647RCAS. Nr.: 125974-72-3Synonyms: RP 60475 (Standard)Intoplicine (Standard) is the analytical standard of Intoplicine (HY-101647). This product is intended for research and analytical applications. Intoplicine (RP 60475), an antitumor derivative in the 7H-benzo[e]pyrido[4,3-b]indole series, is a DNA topoisomerase I and II inhibitor. Intoplicine strongly binds DNA (KA = 2 x 105 /M) and thereby increases the length of linear DNA.
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LD-38
0 ImagesArt. -Nr.: HY-177495CAS. Nr.: 3094583-35-1LD-38 is a drug-linker conjugate for ADC. LD-38 consists of a topoisomerase 1 inhibitor (Exatecan) (HY-13631) and a highly hydrophilic stable and cleavable linker. LD-38 can be used for synthesis of ADCs, such as KA-3123-LD38.
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Topoisomerase inhibitor 6
0 ImagesArt. -Nr.: HY-174227CAS. Nr.: 2987726-03-2Topoisomerase inhibitor 6 (Compound REDX05931) is a dual irreversible inhibitor of DNA gyrase and topoisomerase IV (MIC=0.06 μg/mL against fluoroquinolone-resistant S. aureus). Topoisomerase inhibitor 6 blocks DNA strand break-reunion, inducing lethal DNA damage. Topoisomerase inhibitor 6 is promising for research of Gram-positive bacterial infections (e.g., S. aureus, S. pneumoniae).
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Pirarubicin (Standard)
0 ImagesSynonyms: THP (Standard)Pirarubicin (Standard) is the analytical standard of Pirarubicin. This product is intended for research and analytical applications. Pirarubicin is an anthracycline antibiotics, acts as a topoisomerase II inhibitor, and is a widely used for treatment of various cancers, in particular, solid tumors.
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Topoisomerase II-IN-26
0 ImagesArt. -Nr.: HY-184297Topoisomerase II-IN-26 is a dual bacterial type II topoisomerase (Top II) inhibitor, with IC50 values of 0.081 μM and 0.093 μM against Staphylococcus aureus DNA gyrase and topoisomerase IV, respectively, and IC50 values of 0.906 μM and 0.103 μM against Escherichia coli DNA gyrase and topoisomerase IV, respectively. Topoisomerase II-IN-26 also shows high selectivity for human topoisomerase IIα. Topoisomerase II-IN-26 inhibits biofilm formation, reduces the metabolic activity of mature biofilms, exhibits activity against Staphylococcus aureus, MRSA strains, Escherichia coli and Acinetobacter baumannii, and possesses a post-antibiotic effect. Topoisomerase II-IN-26 can be used for the research of bacterial infections such as Staphylococcus aureus and MRSA.
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Phenoxodiol (Standard)
0 ImagesSynonyms: Idronoxil (Standard); Dehydroequol (Standard); Haginin E (Standard)Phenoxodiol (Standard) is the analytical standard of Phenoxodiol. This product is intended for research and analytical applications. Phenoxodiol (Idronoxil), a synthetic analog of Genestein, activates the mitochondrial caspase system, inhibits XIAP (an apoptosis inhibitor), and sensitizes the cancer cells to Fas-mediated apoptosis. Phenoxodiol also inhibits DNA topoisomerase II by stabilizing the cleavable complex. Phenoxodiol induces cell cycle arrest in the G1/S phase of the cell cycle and upregulates p21WAF1 via a p53 independent manner.
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Daunorubicin (Standard)
0 ImagesArt. -Nr.: HY-13062ARCAS. Nr.: 20830-81-3Synonyms: Daunomycin (Standard); RP 13057 (Standard); Rubidomycin (Standard)Daunorubicin (Standard) is the analytical standard of Daunorubicin (HY-13062A). This product is intended for research and analytical applications. Daunorubicin (Daunomycin) is a topoisomerase II inhibitor with potent anti-tumor activity. Daunorubicin inhibits DNA and RNA synthesis. Daunorubicin is a cytotoxin that inhibits cancer cell viability and induces apoptosis and necrosis. Daunorubicin is also an anthracycline antibiotic. Daunorubicin can be used in the research of infection and variety of cancers, including leukemia, non-HodgKin lymphomas, Ewing's sarcoma, Wilms' tumor.
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Antibacterial agent 352
0 ImagesArt. -Nr.: HY-184287Antibacterial agent 352 is an orally active Antibacterial agent. Antibacterial agent 352 binds to the active cavity of Staphylococcus aureus DNA gyrase via hydrogen bonding, π-π stacking and hydrophobic interactions, thereby blocking bacterial DNA synthesis. Antibacterial agent 352 exhibits antibacterial activity against Gram-positive bacteria including Staphylococcus aureus, Bacillus pumilus, Staphylococcus epidermidis and Enterococcus faecalis. Antibacterial agent 352 can disrupt established Staphylococcus aureus biofilms and inhibit the formation of Staphylococcus aureus biofilms. Antibacterial agent 352 can be used in the research of Staphylococcus aureus wound infections.
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Exatecan Intermediate 1 (Standard)
0 ImagesExatecan Intermediate 1 (Standard) is the analytical standard of Exatecan Intermediate 1. This product is intended for research and analytical applications. Exatecan Intermediate 1 (compound 6) is an intermediate of Exatecan (HY-13631). Exatecan is a DNA topoisomerase I inhibitor with anticancer effects.
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Razoxane (Standard)
0 ImagesArt. -Nr.: HY-119425RCAS. Nr.: 21416-67-1Synonyms: ICRF 159 (Standard)Razoxane (Standard) is the analytical standard of Razoxane. This product is intended for research and analytical applications. Razoxane (ICRF 159) is an antiangiogenic topoisomerase II inhibitor, can be used for the research of renal cell carcinoma (RCC).
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A20832
0 ImagesArt. -Nr.: HY-114684CAS. Nr.: 40526-96-3A20832 is a specific resolvase inhibitor that blocks both the recombination and topoisomerase activities of resolvase. A20832 inhibits the site-specific recombination reaction mediated by the Tn3-encoded resolvase protein at the strand cleavage step and has no effect on synapsis.
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Merbarone (Standard)
0 ImagesArt. -Nr.: HY-19024RCAS. Nr.: 97534-21-9Synonyms: NSC 336628 (Standard)Merbarone (Standard) is the analytical standard of Merbarone. This product is intended for research and analytical applications. Merbarone (NSC 336628) is an orally active inhibitor of topoisomerase II. Merbarone acts primarily by blocking topoisomerase II-mediated DNA cleavage without stabilizing topo II-DNA covalent complexes. Merbarone is an anticancer agent.
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Chloroquinoxaline sulfonamide (Standard)
0 ImagesChloroquinoxaline sulfonamide (Standard) is the analytical standard of Chloroquinoxaline sulfonamide. This product is intended for research and analytical applications. Chloroquinoxaline sulfonamide (Chloroquinoxaline), a structural analogue of sulfaquinoxaline, is a topoisomerase II alpha/beta poison. Chloroquinoxaline sulfonamide is used to control coccidiosis in poultry, rabbit, sheep, and cattle. Antitumor activity.
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DNA gyrase/Topo IV-IN-3
0 ImagesArt. -Nr.: HY-183700DNA gyrase/Topo IV-IN-3 is an inhibitor of Escherichia coli DNA gyrase and Topoisomerase IV, with IC50 values of 1.75 μM and 3.47 μM, respectively. DNA gyrase/Topo IV-IN-3 acts as a biofilm inhibitor and exhibits antibacterial activity against both Gram-negative and Gram-positive bacteria. DNA gyrase/Topo IV-IN-3 can be used in studies related to bacterial infections.
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Niranthin (Standard)
0 ImagesArt. -Nr.: HY-N6054RCAS. Nr.: 50656-77-4Niranthin (Standard) is the analytical standard of Niranthin. This product is intended for research and analytical applications. Niranthin, a lignan with a wide spectrum of pharmacological activities. Niranthin is a potent and non-competitive inhibitor of heterodimeric type IB topoisomerase of L. donovani. Niranthin can be used for the research of drug-resistant leishmaniasis research.
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IKE16
0 ImagesArt. -Nr.: HY-178330IKE16 is a fungi-selective eukaryotic topoisomerase II inhibitor, with an IC50 value of 13.68 μM. IKE16 suppresses both the DNA relaxation activity and the decatenation activity of yTOPOII selectively. IKE16 shows moderate activity against standard fungal strains (Candida albicans ATCC 10231, Saccharomyces cerevisiae ATCC 89763) with a minimum inhibitory concentration (MIC) of 2 μg/mL against S. cerevisiae ATCC 89763. IKE16 exhibits high cytotoxicity against human cells, with an EC50 of 0.07 μM in HepG2 and 0.045 μM in HEK-293. IKE16 can be used for the study of antifungal infection.
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Topoisomerase I inhibitor 10
0 ImagesArt. -Nr.: HY-156464Topoisomerase I inhibitor 10 (compound 13) is a leishmanial topoisomerase IB inhibitor. Topoisomerase I inhibitor 10 has antileishmanial activity against L. donovani promastigotes, with the IC50 of 27.91 μM.
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Gatifloxacin mesylate
0 ImagesArt. -Nr.: HY-10581BCAS. Nr.: 316819-28-0Synonyms: AM-1155 mesylate; BMS-206584 mesylate; PD135432 mesylateGatifloxacin mesylate (AM-1155; BMS-206584; PD135432) is a potent fluoroquinolone antibiotic with broad-spectrum antibacterial activity. Gatifloxacin mesylate inhibits bacterial type II topoisomerases (IC50=13.8 μg/ml for S. aureus topoisomerase IV) and E. coli DNA gyrase (IC50 = 0.109 μg/ml). Gatifloxacin mesylate can be used to treat bacterial conjunctivitis in vivo.
