Hairpin formation during DNA synthesis primer realignment in vitro in triplet repeat sequences from human hereditary disease genes.

@article{Ohshima1997HairpinFD,
  title={Hairpin formation during DNA synthesis primer realignment in vitro in triplet repeat sequences from human hereditary disease genes.},
  author={Kiyoshi Ohshima and R. D. Wells},
  journal={The Journal of biological chemistry},
  year={1997},
  volume={272 27},
  pages={16798-806}
}
Genetic expansion of DNA triplet repeat sequences (TRS) found in neurogenetic disorders may be due to abnormal DNA replication. We have previously observed strong DNA synthesis pausings at specific loci within the long tracts (> approximately 70 repeats) of CTG.CAG and CGG.CCG as well as GTC.GAC by primer extensions in vitro using DNA polymerases (the Klenow fragment of Escherichia coli DNA polymerase I, the modified T7 DNA polymerase (Sequenase), and human DNA polymerase beta). Herein, we have… CONTINUE READING

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