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7C: Computational Chromosome Conformation Capture by Correlation of ChIP-seq at CTCF motifs
Ibn-Salem, Jonas ; Andrade-Navarro, Miguel A
BMC genomics, 2019-10, Vol.20 (1), p.777-777, Article 777
[Peer Reviewed Journal]
England: BioMed Central Ltd
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Title:
7C: Computational Chromosome Conformation Capture by Correlation of ChIP-seq at CTCF motifs
Author:
Ibn-Salem, Jonas
;
Andrade-Navarro, Miguel A
Subjects:
Analysis
;
Biochemistry
;
CCCTC-Binding Factor - metabolism
;
ChIP-seq
;
Chromatin
;
Chromatin - chemistry
;
Chromatin - genetics
;
Chromatin - metabolism
;
Chromatin Immunoprecipitation Sequencing
;
Chromatin interactions
;
Chromosomes - chemistry
;
Chromosomes - genetics
;
Chromosomes - metabolism
;
Criminal investigation
;
DNA
;
DNA binding proteins
;
DNA sequencing
;
Formaldehyde
;
Gene expression
;
Genes
;
Genomes
;
Genomics
;
HeLa Cells
;
Human genome
;
Humans
;
Novels
;
Nucleotide Motifs
;
Nucleotide sequencing
;
Protein Conformation
;
Proteins
;
Three-dimensional genome architecture
;
Transcription (Genetics)
;
Transcription factors
Is Part Of:
BMC genomics, 2019-10, Vol.20 (1), p.777-777, Article 777
Notes:
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Description:
Knowledge of the three-dimensional structure of the genome is necessary to understand how gene expression is regulated. Recent experimental techniques such as Hi-C or ChIA-PET measure long-range chromatin interactions genome-wide but are experimentally elaborate, have limited resolution and such data is only available for a limited number of cell types and tissues. While ChIP-seq was not designed to detect chromatin interactions, the formaldehyde treatment in the ChIP-seq protocol cross-links proteins with each other and with DNA. Consequently, also regions that are not directly bound by the targeted TF but interact with the binding site via chromatin looping are co-immunoprecipitated and sequenced. This produces minor ChIP-seq signals at loop anchor regions close to the directly bound site. We use the position and shape of ChIP-seq signals around CTCF motif pairs to predict whether they interact or not. We implemented this approach in a prediction method, termed Computational Chromosome Conformation Capture by Correlation of ChIP-seq at CTCF motifs (7C). We applied 7C to all CTCF motif pairs within 1 Mb in the human genome and validated predicted interactions with high-resolution Hi-C and ChIA-PET. A single ChIP-seq experiment from known architectural proteins (CTCF, Rad21, Znf143) but also from other TFs (like TRIM22 or RUNX3) predicts loops accurately. Importantly, 7C predicts loops in cell types and for TF ChIP-seq datasets not used in training. 7C predicts chromatin loops which can help to associate TF binding sites to regulated genes. Furthermore, profiling of hundreds of ChIP-seq datasets results in novel candidate factors functionally involved in chromatin looping. Our method is available as an R/Bioconductor package: http://bioconductor.org/packages/sevenC .
Publisher:
England: BioMed Central Ltd
Language:
English
Links
View this record in MEDLINE/PubMed
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