July 19, 2019  |  

Going beyond five bases in DNA sequencing.

Authors: Korlach, Jonas and Turner, Stephen W

DNA sequencing has provided a wealth of information about biological systems, but thus far has focused on the four canonical bases, and 5-methylcytosine through comparison of the genomic DNA sequence to a transformed four-base sequence obtained after treatment with bisulfite. However, numerous other chemical modifications to the nucleotides are known to control fundamental life functions, influence virulence of pathogens, and are associated with many diseases. These modifications cannot be accessed with traditional sequencing methods. In this opinion, we highlight several emerging single-molecule sequencing techniques that have the potential to directly detect many types of DNA modifications as an integral part of the sequencing protocol. Copyright © 2012 Elsevier Ltd. All rights reserved.

Journal: Current opinion in structural biology
DOI: 10.1016/j.sbi.2012.04.002
Year: 2012

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