Genome-wide Purification of Extrachromosomal Circular DNA from Eukaryotic CellsHenrik D. Møller 1, Rasmus K. Bojsen 2, Chris Tachibana 3, Lance Parsons 4, David Botstein 5, Birgitte Regenberg 1
1Department of Biology, University of Copenhagen, 2National Veterinary Institute, Technical University of Denmark, 3Group Health Research Institute, 4Lewis-Sigler Institute for Integrative Genomics, Princeton University, 5Calico Life Sciences LLC
This paper presents a sensitive method called Circle-Seq for purifying extrachromosomal circular DNA (eccDNA). The method encompasses column purification, removal of remaining linear chromosomal DNA, rolling-circle amplification and high-throughput sequencing. Circle-Seq is applicable to genome-scale screening of eukaryotic eccDNA and studying genome instability and copy-number variation.