RT Journal Article SR Electronic T1 Plasma Contains Ultra-short Single-stranded DNA in Addition to Nucleosomal cfDNA JF bioRxiv FD Cold Spring Harbor Laboratory SP 2021.08.22.457243 DO 10.1101/2021.08.22.457243 A1 Jordan Cheng A1 Marco Morselli A1 Wei-Lun Huang A1 You Jeong Heo A1 Thalyta Pinheiro-Ferreira A1 Feng Li A1 Fang Wei A1 David Chia A1 Hua Jun A1 Kenneth Cole A1 Wu-Chou Su A1 Matteo Pellegrini A1 David TW Wong YR 2021 UL http://biorxiv.org/content/early/2021/08/24/2021.08.22.457243.abstract AB Plasma cell-free DNA is a widely used biomarker for diagnostic screening. We introduce uscfDNA-seq, a single-stranded cell-free DNA NGS pipeline, which bypasses previous limitations to reveal a novel population of ultrashort single-stranded cell-free DNA in plasma with a modal size of 50nt. This species of cfDNA aligns predominantly to the nuclear genome and could potentially be used for novel biomarker discovery.Competing Interest StatementDavid Wong is a consultant to GSK, Mars-Wrigley, Colgate Palmolive and has equity in Liquid Diagnostics LLC.