A reassessment of DNA-immunoprecipitation-based genomic profiling.
A reassessment of DNA-immunoprecipitation-based genomic profiling.
复制标题
DOI:
10.1038/s41592-018-0038-7
复制
发表时间:
2018-07
期刊:
影响因子:
48
通讯作者:
Nestor CE
中科院分区:
文献类型:
--
作者:
Lentini A;Lagerwall C;Vikingsson S;Mjoseng HK;Douvlataniotis K;Vogt H;Green H;Meehan RR;Benson M;Nestor CE
DNA immunoprecipitation sequencing (DIP-seq) is a common enrichment method for profiling DNA modifications in mammalian genomes. However, DIP-seq profiles often exhibit significant variation between independent studies of the same genome and from profiles obtained by alternative methods. Here we show that these differences are primarily due to intrinsic affinity of IgG for short unmodified DNA repeats. This pervasive experimental error accounts for 50 - 99% of regions identified as ‘enriched’ for DNA modifications in DIP-seq data. Correction of this error profoundly alters DNA modification profiles for numerous cell types, including mouse embryonic stem cells, and subsequently reveals novel associations between DNA modifications, chromatin modifications and biological processes. We conclude that both matched Input and IgG controls are essential to correctly interpret the results of DIP-based assays and that complementary, non-antibody based techniques be used to validate DIP-based findings to avoid further misinterpretation of genome-wide profiling data.
登录
查看更多内容
影响因子:
64.5
作者:
Fu Y;Luo GZ;Chen K;Deng X;Yu M;Han D;Hao Z;Liu J;Lu X;Dore LC;Weng X;Ji Q;Mets L;He C
通讯作者:
He C
影响因子:
48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者:
Salzberg, Steven L.
影响因子:
4.9
作者:
Bao W;Kojima KK;Kohany O
通讯作者:
Kohany O
影响因子:
16
作者:
Heinz S;Benner C;Spann N;Bertolino E;Lin YC;Laslo P;Cheng JX;Murre C;Singh H;Glass CK
通讯作者:
Glass CK
影响因子:
46.9
作者:
通讯作者:
--