NicE-seq: high resolution open chromatin profiling #MMPMID28655330
Ponnaluri VKC; Zhang G; Estève PO; Spracklin G; Sian S; Xu Sy; Benoukraf T; Pradhan S
Genome Biol 2017[]; 18 (ä): ä PMID28655330show ga
Open chromatin profiling integrates information across diverse regulatory elements to reveal the transcriptionally active genome. Tn5 transposase and DNase I sequencing-based methods prefer native or high cell numbers. Here, we describe NicE-seq (nicking enzyme assisted sequencing) for high-resolution open chromatin profiling on both native and formaldehyde-fixed cells. NicE-seq captures and reveals open chromatin sites (OCSs) and transcription factor occupancy at single nucleotide resolution, coincident with DNase hypersensitive and ATAC-seq sites at a low sequencing burden. OCSs correlate with RNA polymerase II occupancy and active chromatin marks, while displaying a contrasting pattern to CpG methylation. Decitabine-mediated hypomethylation of HCT116 displays higher numbers of OCSs.Electronic supplementary material: The online version of this article (doi:10.1186/s13059-017-1247-6) contains supplementary material, which is available to authorized users.