Modeling methyl-sensitive transcription factor motifs with an expanded epigenetic alphabet.
Modeling methyl-sensitive transcription factor motifs with an expanded epigenetic alphabet.
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DOI:
10.1186/s13059-023-03070-0
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发表时间:
2024-01-08
期刊:
影响因子:
12.3
通讯作者:
Hoffman, Michael M.
中科院分区:
文献类型:
--
作者:
Viner, Coby;Ishak, Charles A.;Johnson, James;Walker, Nicolas J.;Shi, Hui;Sjoberg-Herrera, Marcela K.;Shen, Shu Yi;Lardo, Santana M.;Adams, David J.;Ferguson-Smith, Anne C.;De Carvalho, Daniel D.;Hainer, Sarah J.;Bailey, Timothy L.;Hoffman, Michael M.
Transcription factors bind DNA in specific sequence contexts. In addition to distinguishing one nucleobase from another, some transcription factors can distinguish between unmodified and modified bases. Current models of transcription factor binding tend not to take DNA modifications into account, while the recent few that do often have limitations. This makes a comprehensive and accurate profiling of transcription factor affinities difficult. Here, we develop methods to identify transcription factor binding sites in modified DNA. Our models expand the standard A/C/G/T DNA alphabet to include cytosine modifications. We develop Cytomod to create modified genomic sequences and we also enhance the MEME Suite, adding the capacity to handle custom alphabets. We adapt the well-established position weight matrix (PWM) model of transcription factor binding affinity to this expanded DNA alphabet. Using these methods, we identify modification-sensitive transcription factor binding motifs. We confirm established binding preferences, such as the preference of ZFP57 and C/EBPβ for methylated motifs and the preference of c-Myc for unmethylated E-box motifs. Using known binding preferences to tune model parameters, we discover novel modified motifs for a wide array of transcription factors. Finally, we validate our binding preference predictions for OCT4 using cleavage under targets and release using nuclease (CUT&RUN) experiments across conventional, methylation-, and hydroxymethylation-enriched sequences. Our approach readily extends to other DNA modifications. As more genome-wide single-base resolution modification data becomes available, we expect that our method will yield insights into altered transcription factor binding affinities across many different modifications. The online version contains supplementary material available at 10.1186/s13059-023-03070-0.
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影响因子:
13.8
作者:
Song, Chun-Xiao;He, Chuan
通讯作者:
He, Chuan
DOI:
10.1093/bioinformatics/btq164
发表时间:
2010-06-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Hoffman MM;Buske OJ;Noble WS
通讯作者:
Noble WS
影响因子:
2.9
作者:
Syed KS;He X;Tillo D;Wang J;Durell SR;Vinson C
通讯作者:
Vinson C
影响因子:
14.9
作者:
Bailey TL;Boden M;Buske FA;Frith M;Grant CE;Clementi L;Ren J;Li WW;Noble WS
通讯作者:
Noble WS
影响因子:
14.9
作者:
Xu T;Li B;Zhao M;Szulwach KE;Street RC;Lin L;Yao B;Zhang F;Jin P;Wu H;Qin ZS
通讯作者:
Qin ZS