Cited by 238CRISPR and Genetic EngineeringGenomics and Chromatin DynamicsChromatin Remodeling and Cancer

High-throughput mapping of regulatory DNA

Open access
Rajagopal, Nisha, Srinivasan, Sharanya, Kooshesh, Kameron, Guo, Yuchun, Edwards, Matthew D, Banerjee, Budhaditya, Syed, Tahin, Emons, Bart J M +2 more·2016·Nature Biotechnology

Abstract

Quantifying the effects of cis-regulatory DNA on gene expression is a major challenge. Here, we present the multiplexed editing regulatory assay (MERA), a high-throughput CRISPR-Cas9-based approach that analyzes the functional impact of the regulatory genome in its native context. MERA tiles thousands of mutations across ∼40 kb of cis-regulatory genomic space and uses knock-in green fluorescent protein (GFP) reporters to read out gene activity. Using this approach, we obtain quantitative information on the contribution of cis-regulatory regions to gene expression. We identify proximal and distal regulatory elements necessary for expression of four embryonic stem cell-specific genes. We show a consistent contribution of neighboring gene promoters to gene expression and identify unmarked regulatory elements (UREs) that control gene expression but do not have typical enhancer epigenetic or chromatin features. We compare thousands of functional and nonfunctional genotypes at a genomic location and identify the base pair-resolution functional motifs of regulatory elements.

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  • A shared limitation of single-gene screens is that phenotyping is restricted to one or a few genes per experiment.

    “A shared limitation of single-gene screens, whether by CRISPR, CRISPRi, or CRISPRa, is that the phenotyping is restricted to one or a few genes per experiment, e.g. by engineering a reporter to the target gene133,201,203,208, by labelling mRNA products with fluorescence in situ hybridization (FISH)209, or by focusing on drug-responsive202,204, antibody-detectable92, or proliferation-related105,200”

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Authors
Rajagopal, N., Srinivasan, S., Kooshesh, K., Guo, Y., Edwards, M. D., Banerjee, B., Syed, T., Emons, B. J. M., Gifford, D. K., & Sherwood, R. I.
Affiliations
  • MIT Computer Science and Artificial Intelligence Laboratory (US)
  • Brigham and Women's Hospital (US)
Corresponding author
  • Gifford, David K
  • Sherwood, Richard I
Venue
Nature Biotechnology
Published
2016-01-25
Volume
34
Issue
2
Pages
167-174
ISSN
  • 0733-222X (ISSN-L)
  • 1087-0156
  • 1546-1696
OpenAlex
W2254864826
Cited by
238
References
15
Citations by year
2026: 9 · 2025: 9 · 2024: 11 · 2023: 17 · 2022: 15 · 2021: 25 · 2020: 23 · 2019: 30 · 2018: 35 · 2017: 42 · 2016: 22
FWCI
22.36
Type
journal article
Language
en
Open access
Locations
  • Nature Biotechnology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
  • PMC
Funders
  • National Human Genome Research Institute (U01HG007037, R01HG008754, R01HG008363)
  • National Institute of Diabetes and Digestive and Kidney Diseases (K01DK101684)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
Keywords
gene expression regulation, CRISPR/Cas9 mutagenesis, enhancers, promoter activity, GFP reporter, functional motifs, high-throughput functional genomics
MeSH terms
Animals, Chromosome Mapping, Gene Expression Regulation, Sequence Analysis, DNA, Genomics, Regulatory Elements, Transcriptional, Mice, CRISPR-Cas Systems

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