PreprintCited by 91CRISPR and Genetic EngineeringRNA regulation and diseaseLaw, AI, and Intellectual Property

Design of highly functional genome editors by modeling the universe of CRISPR-Cas sequences

Open access
Ruffolo, Jeffrey A., Nayfach, Stephen, Gallagher, Joseph, Bhatnagar, Aadyot, Beazer, Joel, Hussain, Riffat, Russ, Jordan, Yip, Jennifer +5 more·2024·bioRxiv (Cold Spring Harbor Laboratory)

Abstract

Gene editing has the potential to solve fundamental challenges in agriculture, biotechnology, and human health. CRISPR-based gene editors derived from microbes, while powerful, often show significant functional tradeoffs when ported into non-native environments, such as human cells. Artificial intelligence (AI) enabled design provides a powerful alternative with potential to bypass evolutionary constraints and generate editors with optimal properties. Here, using large language models (LLMs) trained on biological diversity at scale, we demonstrate the first successful precision editing of the human genome with a programmable gene editor designed with AI. To achieve this goal, we curated a dataset of over one million CRISPR operons through systematic mining of 26 terabases of assembled genomes and meta-genomes. We demonstrate the capacity of our models by generating 4.8x the number of protein clusters across CRISPR-Cas families found in nature and tailoring single-guide RNA sequences for Cas9-like effector proteins. Several of the generated gene editors show comparable or improved activity and specificity relative to SpCas9, the prototypical gene editing effector, while being 400 mutations away in sequence. Finally, we demonstrate an AI-generated gene editor, denoted as OpenCRISPR-1, exhibits compatibility with base editing. We release OpenCRISPR-1 publicly to facilitate broad, ethical usage across research and commercial applications.

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Crossref · 10.1101/2024.04.22.590591

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  • AI models have already been used to design new CRISPR enzymes, functional proteins, and entire prokaryotic genomes.

    “AI models have already been used to design new CRISPR enzymes,53 functional proteins,128 and even entire prokaryotic genomes.51”
  • Language-model-created proteins such as esmGFP or OpenCrispr1 are different from any of their naturally occurring counterparts.

    “This type of evaluation is already considered within the molecular design space because language-model-created proteins, such as esmGFP52 or OpenCrispr1,53 highlight how different they are from any of their naturally occurring counterparts.”

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Research works printed but not linked: 3

  1. Laurens Van der Maaten and Geoffrey Hinton . Visualizing data using t-sne. Journal of machine learning research, 9(11), 2008.
  2. 10.1016/j.cell.2019.01.001/attachment/31d7fb71-dca8-4659-bc04-fb25bcc69750/mmc7.xlsx · DOI
  3. 10.1186/1471-2105-8-1 · DOI

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Authors
Ruffolo, J. A., Nayfach, S., Gallagher, J., Bhatnagar, A., Beazer, J., Hussain, R., Russ, J., Yip, J., Hill, E., Pacesa, M., Meeske, A. J., Cameron, P., & Madani, A.
Corresponding author
Madani, Ali
Venue
bioRxiv (Cold Spring Harbor Laboratory)
Publisher
openRxiv
Published
2024-04-22
OpenAlex
W4394992892
Cited by
90
References
79
Citations by year
2026: 15 · 2025: 52 · 2024: 23
Type
posted content
Language
en
Open access
Licence
cc-by-nc-nd
Locations
bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
  • Physical Sciences › Computer Science › Artificial Intelligence › Law, AI, and Intellectual Property
Keywords
large language models, single guide RNA design, human genome editing, base editing, precision genome editing

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