Cited by 1,111Genomics and Chromatin DynamicsChromatin Remodeling and CancerCRISPR and Genetic Engineering

Activity-by-contact model of enhancer–promoter regulation from thousands of CRISPR perturbations

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Fulco, Charles P., Nasser, Joseph, Jones, Thouis R., Munson, Glen, Bergman, Drew T., Subramanian, Vidya, Grossman, Sharon R., Anyoha, Rockwell +11 more·2019·Nature Genetics

Abstract

Enhancer elements in the human genome control how genes are expressed in specific cell types and harbor thousands of genetic variants that influence risk for common diseases 1-4. Yet, we still do not know how enhancers regulate specific genes, and we lack general rules to predict enhancer-gene connections across cell types 5,6. We developed an experimental approach, CRISPRi-FlowFISH, to perturb enhancers in the genome, and we applied it to test >3,500 potential enhancer-gene connections for 30 genes. We found that a simple activity-by-contact model substantially outperformed previous methods at predicting the complex connections in our CRISPR dataset. This activity-by-contact model allows us to construct genome-wide maps of enhancer-gene connections in a given cell type, on the basis of chromatin state measurements. Together, CRISPRi-FlowFISH and the activity-by-contact model provide a systematic approach to map and predict which enhancers regulate which genes, and will help to interpret the functions of the thousands of disease risk variants in the noncoding genome.

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Crossref · 10.1038/s41588-019-0538-0

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  • The probability of loop formation is an important biophysical quantity that can be used to inform quantitative models of chromatin looping and its downstream effects.

    “Thus, the probability of loop formation represents an important biophysical quantity, which can be used to inform quantitative models of chromatin looping and its downstream effects.27–34”

    From Genome-wide absolute quantification of chromatin looping (2026) · cites this paper as [30]

    The ABC-model discussion (section labeled Abstract; page unavailable) uses enhancer–promoter contact frequency to model an enhancer’s quantitative effect on gene expression. It does not identify that frequency as the probability of loop formation or use it to model chromatin looping itself, so those parts of the claim are not supported. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • The ABC score relies on experimental data, such as a HiC-based interaction frequency and H3K27ac as input, whereas Enformer uses only DNA sequence as input and was never trained to explicitly locate enhancers.

    “This is remarkable because the ABC score relies on experimental data, such as a HiC-based interaction frequency and H3K27ac as input (Fig. 2b, blue versus green, and Extended Data Fig. 7a), whereas Enformer uses only DNA sequence as input and was never trained to explicitly locate enhancers.”

    From Effective gene expression prediction from sequence by integrating long-range interactions (2021) · cites this paper as [13]

    The ABC model description states that the score uses H3K27ac ChIP-seq data and, in the described implementation, Hi-C contact frequency. Our copy does not address Enformer, so it cannot support the claims about Enformer's inputs or training. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • This fixed and broader window yielded better performance compared to the variable window size of ~500 bp as used in the original ABC score.

    “This fixed and broader window yielded better performance compared to the variable window size of ~500 bp as used in the original ABC score (Extended Data Fig. 4a).”

    From Effective gene expression prediction from sequence by integrating long-range interactions (2021) · cites this paper as Fulco et al. [13]

    The Methods (Activity by Contact model; page not provided) say the original ABC model used 500-bp candidate elements and merged overlapping regions, producing variable lengths (576 bp on average in K562). Our copy does not report that a fixed, broader window performed better; the citing sentence points to its own Extended Data Fig. 4a for that comparison. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Machine learning strategies to predict enhancer-gene links on the basis of 1D and 3D biochemical annotations are already advancing beyond the simple 'nearest gene' approach.

    “For example, machine learning strategies to predict enhancer–gene links on the basis of 1D and 3D biochemical annotations are already advancing beyond the simple ‘nearest gene’ approach134,209,222.”

    From Towards a comprehensive catalogue of validated and target-linked human enhancers (2020) · cites this paper as [209]

    The paper’s model description and performance results (section labeled Abstract; page unavailable) show that Activity-by-Contact combines biochemical activity with 3D contact and predicts enhancer–gene links better than genomic distance or assignment to the closest gene. But the paper describes ABC as a simple biochemical model, not a machine-learning strategy, and reports that the prior machine-learning approaches it tested were unsuccessful. That part of the attribution is not supported. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Even in interphase nuclei, genomic distance continues to be a reasonable predictor of functional enhancer-promoter contacts, particularly in the short to medium range (<100 kb).

    “even in interphase nuclei, genomic distance continues to be a reasonable predictor of functional enhancer–promoter contacts, particularly in the short to medium range (< 100 kb), as evidenced by high-throughput enhancer perturbation data [183, 184].”

    From Transcriptional enhancers and their communication with gene promoters (2021) · cites this paper as [183]

    The paper’s results (indexed under Abstract; page unavailable) report that 84% of regulatory distal elements were within 100 kb of their target promoter, supporting the distance-range part of the claim. But the same passage says distance-threshold predictions performed poorly: only 13% of distal elements within 100 kb of an expressed promoter had a regulatory effect. It does not establish the claim specifically for interphase nuclei. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

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Authors
Fulco, C. P., Nasser, J., Jones, T. R., Munson, G., Bergman, D. T., Subramanian, V., Grossman, S. R., Anyoha, R., Doughty, B. R., Patwardhan, T. A., Nguyen, T. H., Kane, M., Perez, E. M., Durand, N. C., Lareau, C. A., Stamenova, E. K., Aiden, E. L., Lander, E. S., & Engreitz, J. M.
Affiliations
Broad Institute (US)
Corresponding author
  • Lander, Eric S.
  • Engreitz, Jesse M.
Venue
Nature Genetics
Published
2019-11-29
Volume
51
Issue
12
Pages
1664-1669
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2991283206
Cited by
1,111
References
88
Citations by year
2026: 192 · 2025: 207 · 2024: 199 · 2023: 174 · 2022: 139 · 2021: 115 · 2020: 77 · 2019: 6 · 2012: 2
FWCI
27.97
Type
journal article
Language
en
Open access
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
Funders
U.S. Department of Health & Human Services | NIH | National Human Genome Research Institute (1K99HG009917-01)
Topics
  • 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
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
Keywords
chromatin state, non-coding variants, disease risk variants, gene expression regulation
MeSH terms
Histone Deacetylase 6, RNA, Guide, CRISPR-Cas Systems, Animals, Enhancer Elements, Genetic, Gene Expression Regulation, Humans, Models, Genetic, Promoter Regions, Genetic, In Situ Hybridization, Fluorescence, K562 Cells, GATA1 Transcription Factor, Mice, Clustered Regularly Interspaced Short Palindromic Repeats

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