CHEMBL3887699

Inhibition Assay: A rapid plate DNA synthesis assay was performed using optimized conditions. Briefly, a 1.2:1 ratio of a 20-mer oligonucleotide primer (5′-GCGAATGAATGACCGCTGAC-3′, SEQ ID No. 1) and a 5′-end biotinylated 100-mer oligonucleotide template (5′-Biotin-AGCACTATTGACATTACAGAGTCGCCTTGGCTCTCTGGCTGTTCGTTGCGGGCTCCGCG TGCGTTGGCTTCGGTCGTCCCGTCAGCGGTCATTCATTGGC-3′) were annealed and loaded into a 96-well microtiter streptavidin-coated plate (Streptawell plates, Roche Applied Science, Indianapolis, Ind., USA) at 5 pmol/well. The wells were incubated at 37 C for 90 min, and washed with 100 L PBS. The reaction was conducted in low salt buffer (20 mM Tris-HCl pH 7.4, 3 mM MgCl2, 0.1 mM EDTA, 0.5 mM DTT, 2% glycerol, 40 ug/mL BSA, 5 uM dNTPs, 1 uM digoxigenin-11-2′-deoxyuridine-5′-triphosphate (DIG-dUTP, Roche Applied Science) with 1 μL vaccinia infected cell lysate or 1 uL of in vitro translated E9 DNA polymerase. The reaction plates were incubated at 37° C