polymerases

Tubercidin (Sparsomycin A) 是从Streptomyces tubercidicus 得到的抗生素，抑制粪链球菌生长的IC50值为 0.02 μM。它是腺苷磷酸化酶的弱抑制剂，并干扰腺苷和 AMP 的磷酸化。它有抗病毒作用。

5-(Hydroxymethyl)uracil 是一种氧化性 DNA 损伤的产物，能够增强或抑制细菌 RNA 聚合酶转录的潜在表观遗传标记。

Tsugaric acid A 能够显著抑制超氧阴离子的形成，还可以保护人类角质形成细胞，使其免受紫外线 B 诱导的损害。

Juglone (Regianin) 是一种从黑胡桃Juglans regia 中发现的黄色染料，有抗菌作用。

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)