ArticleScientific reports2018
TT(N)mGCCTC inhibits archaeal family B DNA polymerases.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The proofreading activity of the archaeal family B DNA polymerases enables PCR with high fidelity. However, thermostable proofreading DNA polymerases occasionally failed to amplify target fragment that could be amplified by Taq DNA polymerase. We have previously showed that G-rich sequences, which form G-quadruplex, can bind to and inhibit proofreading DNA polymerases. Here we showed that single-stranded oligonucleotides containing sequences of TT(N)mGCCTC can bind and inhibit archaeal family B DNA polymerases but not Taq DNA polymerase. It is very likely that TT(N)mGCCTC inhibits thermostable DNA polymerases during PCR in a single-stranded form. To the best of our knowledge, this is the first example of DNA sequence that could inhibit DNA polymerase in its single-stranded form.
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