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RNA and DNA polymerase inhibitors block enzymes that copy nucleic acid templates in bacteria, viruses and human cells. Rifampin and rifabutin are rifamycins that bind bacterial RNA polymerase and stop the transcript after two or three nucleotides. For RNA viruses, favipiravir serves as a prodrug whose triphosphate form blocks the viral RNA-dependent RNA polymerase. Tenofovir and abacavir block reverse transcriptase, the DNA polymerase of human immunodeficiency virus (HIV). Actinomycin D intercalates into DNA and blocks transcription, and BMH-21 inhibits RNA polymerase I. Fludarabine phosphate, a purine nucleoside analog, inhibits the human DNA polymerases α and δ.
Synonyms: 5'-GTP disodium salt
Guanosine 5′-triphosphate (GTP), a purine trinucleotide, is a substrate for RNA polymerases and a wide range of GTPase including G-protein coupled receptor (GPCR) GTPases and cell signaling and cycling associated guanine nucleotide exhange factors (GEF).
Synonyms: dATP trisodium
2'-Deoxyadenosine-5'-triphosphate trisodium is a critical substrate for DNA polymerase, facilitating DNA synthesis and replication processes. It serves as a vital component in molecular biology research, particularly in studies related to genetic immunodeficiency disorders, such as adenosine deaminase deficiency and purine nucleotide phosphorylase deficiency. This nucleotide is essential for in vitro applications involving DNA amplification and manipulation.
5-Propargylamino-dCTP is a substrate for DNA polymerases, enabling the synthesis of labeled nucleic acids. This reagent facilitates conjugation to molecular markers, enhancing applications in nucleic acid labeling and sequencing analysis. Featuring an alkyne group, 5-Propargylamino-dCTP is suitable for click chemistry, allowing for copper-catalyzed azide-alkyne cycloaddition (CuAAc) with azide-containing molecules.
7-Deaza-2'-deoxyadenosine is a structural analog of 2'-deoxyadenosine that serves as a substrate for various DNA polymerases. Its unique chemical properties facilitate incorporation into DNA strands, enabling site-specific labeling through a bioorthogonal inverse electron demand Diels-Alder reaction with tetrazine-modified molecules. This reagent has shown to influence DNA curvature and reduce the stability of DNA/RNA double helices, with implications for decreasing antisense activity against SV40 T Antigen. 7-Deaza-2'-deoxyadenosine is particularly useful in the study of cancers related to SV40 T Antigen.
Synonyms: dATP
2'-Deoxyadenosine-5'-triphosphate (dATP) serves as a critical substrate for DNA polymerase during DNA synthesis and replication. This nucleotide plays a vital role in the formation of DNA molecules by providing the necessary building blocks for polymerization. dATP is essential for various molecular biology applications, including DNA amplification, sequencing, and cloning, making it a valuable reagent for biochemical and genetic research.
Synonyms: TRX-TP
Troxacitabine triphosphate (TRX-TP) serves as a substrate for DNA polymerases, specifically targeting replicative and repair enzymes. This compound demonstrates key biological activity by facilitating DNA synthesis and repair processes in vitro. It is valuable for research applications that involve the study of nucleotide incorporation and polymerase activity, providing insights into DNA replication and repair mechanisms.
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