DNA/RNA Synthesis Inhibitor

Phosphonoacetic acid is a potent antiviral agent. Phosphonoacetic acid inhibits a variety of herpesviruses, orthopoxviruses, and retroviruses. Phosphonoacetic acid strongly inhibits viral and cellular DNA polymerase, reverse transcriptase, and terminal deoxynucleotidyl transferase activities in a non-competitive or uncompetitive manner by binding to the pyrophosphate site of the enzyme. Phosphonoacetic acid is useful for research related to lymphoid leukemia, herpesvirus infection, and vaccinia virus skin lesions.

KY386 is a DHX33 helicase inhibitor with an IC₅₀ of 0.019 μM. KY386 inhibits the cell viability of various cancer cells. KY386 induces ferroptosis in cancer cells, and induces apoptosis in some cancer cell lines. KY386 increases the intracellular levels of ROS, LPO and Fe²⁺, and decreases the level of GSH in cancer cells. KY386 inhibits the growth of gastric cancer and colon cancer xenografts in nude mice. KY386 is applicable to the related research on liver cancer, lung cancer, pancreatic cancer, colorectal cancer, gastric cancer, breast cancer, leukemia, renal cancer, prostate cancer, esophageal cancer, cervical cancer, brain cancer (glioblastoma) and melanoma.

Lapachol, a natural naphthoquinone, is an orally active, potent DHODH inhibitor. Lapachol has immunosuppressive activity on lymphocytes through its direct ability to block DHODH activity and inhibit pyrimidine synthesis. Lapachol is a vitamin K antagonist with antitumor activity and can inhibit DNA and RNA synthesis in neoplastic cells. Lapachol has anti-Leishmania activity.

AB25583 is a Polθ helicase (Polθ-hel) small molecule inhibitor, with an IC₅₀ value of 6 nM. AB25583 selectively kills BRCA1/2 deficient cells and works in synergy with Olaparib (HY-10162) in cancer cells carrying pathogenic BRCA1/2 mutations. AB25583 can be used for tumor research.

N-Ethyl-N-nitrosourea (ENU) is a DNA alkylating agent. N-Ethyl-N-nitrosourea induces leukemia by alkylating nucleobases, disrupting DNA, and resulting in bone marrow suppression and the formation of leukemic cells. N-Ethyl-N-nitrosourea is teratogenic in vivo, inducing tumor formation and paw malformations in pregnant rats. N-Ethyl-N-nitrosourea cause central nervous system (CNS) tumors and genetic disorders.

Levofloxacin (Standard) is the analytical standard of Levofloxacin. This product is intended for research and analytical applications. Levofloxacin ((-)-Ofloxacin) is an orally active antibiotic and is active against both Gram-positive and Gram-negative bacteria. Levofloxacin inhibits the DNA gyrase and topoisomerase IV. Levofloxacin can be used for chronic periodontitis, airway inflammation and BK Viremia research. Levofloxacin shows anti-orthopoxvirus activity.

116-9e (MAL2-11B) is a Hsp70 co-chaperone DNAJA1 inhibitor. 116-9e inhibits Simian Virus 40 (SV40) replication and DNA synthesis. 116-9e inhibits tumor antigen (TAg)’s endogenous ATPase activity and the TAg-mediated activation of Hsp70.

Acelarin (NUC-1031) is a ProTide transformation and enhancement of the widely-used nucleoside analogue, gemcitabine.

ccc_R08 is a non-cytotoxic and orally active cccDNA inhibitor that reduces cccDNA levels in the liver of HBV-infected mice. ccc_R08 can be used in the study of HBV virus (hepatitis B virus) infection.

β-Amanitin is a cyclic peptide toxin in the poisonous Amanita phalloides mushroom. β-Amanitin inhibits inhibits eukaryotic RNA polymerase II and III. β-Amanitin inhibits protein synthesis. β-Amanitin can be used as a cytotoxic component of antibody-drug conjugates (ADCs).

L-Alanosine (NSC-153353), an antibiotic from Streptomyces alanosinicus, has antineoplastic activity. L-Alanosine (NSC-153353) inhibits adenylosuccinate synthetase, which converts inosine monophospate (IMP) into adenylosuccinate. L-Alanosine is the inhibitor for methylthioadenosine phosphorylase (MTAP).

MTOB sodium is a potent C-terminal binding protein (CtBP) inhibitor. MTOB sodium attenuates repetitive head injury-elicited neurologic dysfunction and neuroinflammation via inhibition of the transactivation activity of CtBP1 and CtBP2. MTOB sodium antagonizes the transcriptional regulatory activity of CtBP1 and CtBP2 by eviction from their target promoters in breast cancer cell lines.

β-Boswellic acid is isolated from the gum resin of Boswellia serrata with anticancer, antioxidant activity, anti-inflammatory activity and anti-arthritic pain.β-Boswellic acid is an orally active nonreducing-type inhibitor of the 5-lipoxygenase (5-LO) product formation either interacting directly with the 5-LO or blocking its translocation. β-Boswellic acid inhibits the synthesis of DNA, RNA and protein in human leukemia HL-60 cells with IC₅₀ values ranging from 0.6 to 7.1 μM. β-Boswellic acid is promising for research of diabetes, inflammatory and arthritic diseases.

Thymidine (Standard) is the analytical standard of Thymidine. This product is intended for research and analytical applications. Thymidine, a specific precursor of deoxyribonucleic acid, is used as a cell synchronizing agent. Thymidine is a DNA synthesis inhibitor that can arrest cell at G1/S boundary, prior to DNA replication.

(S)-Crizotinib is a potent and selective MTH1 (mutT homologue) inhibitor with an IC₅₀ of 330 nM. (S)-Crizotinib disrupts nucleotide pool homeostasis via MTH1 inhibition, induces an increase in DNA single strand breaks, activates DNA repair in human colon carcinoma cells, and effectively suppresses tumour growth in animal models.

Tetrahydrouridine dihydrate (THU dihydrate) is potent inhibitor of cytidine deaminase (CDA), which competitively blocks the enzyme's active site more effectively than intrinsic cytidine.

Cladosporin is an antibiotic and an an antifungal metabolite that can be produced in good yield in the mycelium of Cladosporium cladosporioid. Cladosporin exhibits inhibitory activity against various dermatophytes, plant pathogens, and bacteria. Cladosporin also exhibits antimalarial activity through inhibition of cytoplasmic lysine-tRNA synthetase of Plasmodium (PfKrs1).

iPAF1C is a inhibitor of the polymerase-associated factor 1 complex (PAF1C) with specific targeting to the PAF1 binding groove of CTR9 (a key subunit of PAF1C). iPAF1C disrupts PAF1C assembly by interfering with the PAF1-CTR9 interaction. iPAF1C selectively impairs BRD4-mediated recruitment of PAF1 to chromatin at hypoxia-responsive genes and inhibits RNA polymerase II (RNAPII) pause release. iPAF1C increases the population of HIV-1 NL4.3 Nef-IRES-GFP infected primary human CD4⁺T cells in a dose-dependent manner. PAF1C can be used for the study of infection and diseases associated with abnormal hypoxic adaptation (e.g., cancers, neurological disorders).

2-Thiouridine is an orally active modified nucleobase. 2-Thiouridine stabilizes U:A base pairs and destabilizes U:G wobble base pairs. 2-Thiouridine significantly improves the efficiency and accuracy of nonenzymatic replication of mixed-sequence A/U-containing RNA templates. 2-Thiouridine exhibits antiviral activity against multiple positive-sense single-stranded RNA viruses (DENV2, ZIKV, YFV, JEV, WNV, CHIKV, human coronaviruses ( [HCoV]-229E, HCoV-OC43, SARS-CoV), and MERS-CoV).

Supinoxin (RX-5902) is an orally active inhibitor of phosphorylated-p68 RNA helicase (P-p68) and a potent first-in-class anti-cancer agent. Supinoxin interacts with Y593 phosphorylated-p68 and attenuates the nuclear shuttling of β-catenin. Supinoxin induces cell apoptosis and inhibits growth of TNBC cancer cell lines with IC₅₀s ranging from 10 nM to 20 nM.