RT Journal Article SR Electronic T1 CLAN: the CrossLinked reads ANalyais tool JF bioRxiv FD Cold Spring Harbor Laboratory SP 233841 DO 10.1101/233841 A1 Cuncong Zhong A1 Shaojie Zhang YR 2017 UL http://biorxiv.org/content/early/2017/12/14/233841.abstract AB The crosslinked RNA sequencing technology ligates interacting RNA strands followed by next-generation sequencing. Mapping of the resulting duplex reads allows for functional inference of the corresponding intramolecular/intermolecular RNA-RNA interactions. However, duplex read mapping remains computationally challenging, and the existing best-performing software fails to map a significant portion of the duplex reads. To address this challenge, we develop a novel algorithm for duplex read mapping, called CrossLinked reads ANalysis tool (CLAN). CLAN demonstrates drastically improved sensitivity and high alignment accuracy when applied to real crosslinked RNA sequencing data. CLAN is implemented in GNU C++, and is freely available from http://sourceforge.net/projects/clan-mapping.