The interaction landscape between transcription factors and the nucleosome
By F. Zhu, L. Farnung, Eevi Kaasinen, Biswajyoti Sahu, Yimeng Yin, Bei Wei, S. Dodonova, K. Nitta, E. Morgunova, Minna Taipale and 2 more. Nature, 2017
315 citations recorded by the source corpus.
Nucleosomes cover most of the genome and are thought to be displaced by transcription factors in regions that direct gene expression. However, the modes of interaction between transcription factors and nucleosomal DNA remain largely unknown. Here we systematically explore interactions between the nucleosome and 220 transcription factors representing diverse structural families. Consistent with earlier observations, we find that the majority of the studied transcription factors have less access to nucleosomal DNA than to free DNA. The motifs recovered from transcription factors bound to nucleosomal and free DNA are generally similar. However, steric hindrance and scaffolding by the nucleosome result in specific positioning and orientation of the motifs. Many transcription factors preferentially bind close to the end of nucleosomal DNA, or to periodic positions on the solvent-exposed side of the DNA. In addition, several transcription factors usually bind to nucleosomal DNA in a particular orientation. Some transcription factors specifically interact with DNA located at the dyad position at which only one DNA gyre is wound, whereas other transcription factors prefer sites spanning two DNA gyres and bind specifically to each of them. Our work reveals notable differences in the binding of transcription factors to free and nucleosomal DNA, and uncovers a diverse interaction landscape between transcription factors and the nucleosome. A method for systematically exploring interactions between the nucleosome and transcription factors identifies five major interaction patterns.
Subfields: Molecular Biology
View Paper: https://www.semanticscholar.org/paper/23163f6ffa0a1069daa3a721653ad6fcfafaff46
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Citations in the corpus
- JASPAR 2022: the 9th release of the open-access database of transcription factor binding profiles (2021, methodology): “We computed and compiled TF binding profiles obtained from CAP-SELEX (14), NCAP-SELEX (30), SELEX-seq (31), PBMs (32), ChIP-seq (33–36) and DAP-seq experiments from ReMap 2022 (36) and GEO (37), and ChIP-exo (38)”