Detection and Characterization of Single Cisplatin Adducts on DNA by Nanopore Sequencing.

ABSTRACT: Detection and characterization of an individual cisplatin adduct on a single DNA molecule is a demanding task. We explore the characteristic features of cisplatin adducts in the nanopore sequencing signal in aspects of dwell time, genome anchored current trace, and basecalling accuracy. The offset between the motor protein and the nanopore constriction region is revealed by dwell time analysis to be about 14 bases in the nanopore device as we examined. Characteristic distortions due to cisplatin adducts are illustrated in genome anchored current trace analysis, constituting the fingerprint for identification of cisplatin adduct. The sharp increase in odds ratio at the location of adducting sites provides additional feature in the detection of the adduct. By these combined methods, single c

SUBMITTER: Zhao X 

PROVIDER: S-EPMC8264939 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature