ArticlePloS one2022
Anomalies in dye-terminator DNA sequencing caused by a natural G-quadruplex.
Article in PloS one, 2022. 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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Abstract
A G-rich DNA sequence from yeast that can form a non-canonical G-quadruplex structure was cloned into a plasmid vector and subjected to Sanger sequencing using dye-labeled dideoxynucleotides. Two different effects were observed. In one, presence of the G4 sequence on the template strand led to incorrect incorporation of an A residue at an internal position in the G4 sequence. In the other, the nascent strand caused attenuation of the readout coincident with synthesis of the G-rich DNA. The two effects are novel examples of disruption in DNA synthesis caused by a G4 sequence. These results provide a new example of a DNA structure that could influence genomic stability in human cells.
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