Global view of enhancer-promoter interactome in human cells.
Proc Natl Acad Sci U S A
; 111(21): E2191-9, 2014 May 27.
Article
en En
| MEDLINE
| ID: mdl-24821768
ABSTRACT
Enhancer mapping has been greatly facilitated by various genomic marks associated with it. However, little is available in our toolbox to link enhancers with their target promoters, hampering mechanistic understanding of enhancer-promoter (EP) interaction. We develop and characterize multiple genomic features for distinguishing true EP pairs from noninteracting pairs. We integrate these features into a probabilistic predictor for EP interactions. Multiple validation experiments demonstrate a significant improvement over state-of-the-art approaches. Systematic analyses of EP interactions across 12 cell types reveal several global features of EP interactions (i) a larger fraction of EP interactions are cell type specific than enhancers; (ii) promoters controlled by multiple enhancers have higher tissue specificity, but the regulating enhancers are less conserved; (iii) cohesin plays a role in mediating tissue-specific EP interactions via chromatin looping in a CTCF-independent manner. Our approach presents a systematic and effective strategy to decipher the mechanisms underlying EP communication.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Transducción de Señal
/
Regulación de la Expresión Génica
/
Elementos de Facilitación Genéticos
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Regiones Promotoras Genéticas
/
Modelos Genéticos
Tipo de estudio:
Prognostic_studies
Límite:
Humans
Idioma:
En
Revista:
Proc Natl Acad Sci U S A
Año:
2014
Tipo del documento:
Article