Cited by 83Genomics and Chromatin DynamicsGene Regulatory Network AnalysisChromatin Remodeling and Cancer

A massively parallel reporter assay dissects the influence of chromatin structure on cis-regulatory activity

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Maricque, Brett B, Chaudhari, Hemangi G, Cohen, Barak A·2019·Nature Biotechnology

Abstract

A gene's position in the genome can profoundly affect its expression because regional differences in chromatin modulate the activity of locally acting cis-regulatory sequences (CRSs). Here we study how CRSs and regional chromatin act in concert on a genome-wide scale. We present a massively parallel reporter gene assay that measures the activities of hundreds of different CRSs, each integrated at many specific genomic locations. Although genome location strongly affected CRS activity, the relative strengths of CRSs were maintained at all chromosomal locations. The intrinsic activities of CRSs also correlated with their activities in plasmid-based assays. We explain our data with a quantitative model in which expression levels are set by independent contributions from local CRSs and the regional chromatin environment, rather than by more complex sequence- or protein-specific interactions between these two factors. The methods we present will help investigators determine when regulatory information is integrated in a modular fashion and when regulatory sequences interact in more complex ways.

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  • Enhancers are punctate relative to broader chromatin domains, but their in vivo functionality depends on chromatin context and the trans milieu.

    “Enhancers are ‘punctate’ relative to broader chromatin domains (e.g. chromosomes, topologically associating domains [G] (TADs) and sub-compartments of TADs87), but their in vivo functionality is dependent on both the chromatin context in which they reside88 and on the trans milieu (e.g. cell-type-specific TFs)89.”

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Authors
Maricque, B. B., Chaudhari, H. G., & Cohen, B. A.
Affiliations
Washington University in St. Louis (US)
Corresponding author
Cohen, Barak A
Venue
Nature Biotechnology
Published
2018-11-19
Volume
37
Issue
1
Pages
90-95
ISSN
  • 0733-222X (ISSN-L)
  • 1087-0156
  • 1546-1696
OpenAlex
W2900900797
Cited by
83
References
50
Citations by year
2026: 6 · 2025: 5 · 2024: 16 · 2023: 11 · 2022: 15 · 2021: 6 · 2020: 16 · 2019: 7 · 2018: 1
FWCI
2.62
Type
journal article
Language
en
Open access
Locations
  • Nature Biotechnology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Alvin J. Siteman Cancer Center
  • Hope Center for Neurological Disorders
  • National Institutes of Health
  • National Human Genome Research Institute (R01HG008687)
  • National Cancer Institute (P30CA091842)
  • National Institute of General Medical Sciences (R01GM092910)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
Keywords
cis-regulatory sequences, chromatin structure, massively parallel reporter assay, gene expression regulation

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