Genome-wide Mapping Eukaryotic Open Chromatin Regions with Double-Stranded DNA Deaminase
Dong, W.; Zhang, J.; Dai, L.; Wang, Z.; Pang, Y.; He, R.; Ren, J.; Liu, Y.; Tian, Y.; Xie, X. S.
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A variety of methods such as ATAC-seq and CUT&Tag have been developed for probing chromatin states. However, enzymatic cleavage of DNA in these methods hinders their multi-omics integration with other DNA profiling techniques. Here, by extending our use of dsDNA deaminase (FOOtprinting with DeamInasE, FOODIE), we introduce two new methods for mapping Chromatin Open region by DeamInasE (ChrODIE) and histone modification by ANtibody-associated DeamInasE (ANDIE), respectively. Unlike cleavage-based methods, both ChrODIE and ANDIE leave genomic DNA after deamination unfragmented and amplifiable. This offers the potential for simultaneous or downstream integration with other genomic profiling methods, such as mapping 3D genome interactions.
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