Apaziquone has potential antineoplastic and radiosensitization activities. It is converted to active metabolites in hypoxic cells by intracellular reductases, which are present in greater amounts in hypoxic tumor cells. The active metabolites alkylate DNA
Olsalazine-13C6 is intended for use as an internal standard for the quantification of olsalazine by GC- or LC-MS. Olsalazine (T20615) is an orally bioavailable prodrug form of the anti-inflammatory agent 5-aminosalicylic acid that is cleaved by bacterial azo reductases in the gut to generate active 5-ASA.1
2'-Deoxyadenosine-5'-triphosphate (dATP) is a purine nucleotide and derivative of the nucleic acid adenosine 5'-triphosphate .1dATP is a substrate for DNA polymerase in the synthesis of DNA.2It is a noncompetitive inhibitor of ribonucleotide reductases, which provides feedback inhibition during DNA synthesis.1dATP has commonly been used in DNA synthesis, sequencing, and labeling in research applications.3,4dATP accumulates in adenosine deaminase deficiency, a disorder characterized by mutations in the gene for adenosine deaminase, the enzyme that catalyzes the deamination of adenosine and deoxyadenosine.5
1.Berg, J.M., Tymoczko, J.L., and Stryer, L.Key steps in nucleotide biosynthesis are regulated by feedback inhibitionBiochemistry(2002) 2.Berg, J.M., Tymoczko, J.L., and Stryer, L.DNA is replicated by polymerases that take instructions from templatesBiochemistry(2002) 3.Cadwell, R.C., and Joyce, G.F.Randomization of genes by PCR mutagenesisPCR Methods Appl.2(1)28-33(1992) 4.Steffens, D.L., Jang, G.Y., Sutter, S.L., et al.An infrared fluorescent dATP for labeling DNAGenome Res.5(4)393-399(1995) 5.Flinn, A.M., and Gennery, A.R.Adenosine deaminase deficiency: A reviewOrphanet J. Rare Dis.13(1)65(2018)
Aquastatin C 是一种真菌代谢产物,发现于 Sporothix。与 aquastatin A 不同,aquastatin C 不抑制细菌 enoyl-ACP reductases,如 S. aureus enoyl-acyl carrier protein reductase (Fabl; IC50 = >100 µM),对 S. aureus、耐甲氧西林金黄色葡萄球菌 (MRSA) 或 S. pneumoniae 无活性 (MICs = >128 for all)。