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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Suzuki, Norihiko Fukushima, Masakazu |
| Description | Country affiliation: Japan Author Affiliation: Suzuki N ( Tokushima Research Center, Taiho Pharmaceutical Co. Ltd., 224-2 Hiraishi-ebisuno, Kawauchi, Tokushima, Japan. suzuki@taiho.co.jp) |
| Abstract | To investigate the mechanism of trifluorothymidine (TFT)-induced DNA damage, we developed an enzymatic method for the synthesis of single-strand oligonucleotides containing TFT-monophosphate residues. Sixteen-mer oligonucleotides and 14-mer 5'-phosphorylated oligonucleotides were annealed to the template of 25-mer, so as to empty one nucleotide site. TFT-triphosphate was incorporated into the site by DNA polymerase and then ligated to 5'-phosphorylated oligonucleotides by DNA ligase. The synthesized 31-mer oligonucleotides containing TFT residues were isolated from the 25-mer complementary template by denaturing polyacrylamide electrophoresis. Using these single-strand oligonucleotides containing TFT residues, the cleavage of TFT residues from DNA, using mismatch uracil-DNA glycosylase (MUG) of E.coli origin, was compared with that of 5-fluorouracil (5FU) and 5-bromodeoxyuridine (BrdU). The TFT/A pair was not cleaved by MUG, while the other pairs, namely, 5FU/A, 5FU/G, BrdU/A, BrdU/G, and TFT/G, were easily cleaved from each synthesized DNA. Thus, this method is useful for obtaining some site-specifically modified oligonucleotides. |
| File Format | HTM / HTML |
| ISSN | 15257770 |
| e-ISSN | 15322335 |
| DOI | 10.1080/15257770.2010.535803 |
| Journal | Nucleosides, Nucleotides and Nucleic Acids |
| Issue Number | 11 |
| Volume Number | 29 |
| Language | English |
| Publisher | Taylor & Francis |
| Publisher Date | 2010-11-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Discipline Biochemistry Dna Damage Oligonucleotides Chemical Synthesis Trifluridine Chemistry Autoradiography Bromodeoxyuridine Dna Ligases Dna Primers Genetics Dna-directed Dna Polymerase Denaturing Gradient Gel Electrophoresis Fluorouracil Thymine Dna Glycosylase |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Medicine Biochemistry Molecular Medicine |
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