Cited by 496Machine Learning in BioinformaticsProtein Structure and DynamicsRNA and protein synthesis mechanisms

ProGen2: Exploring the boundaries of protein language models

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Nijkamp, Erik, Ruffolo, Jeffrey A., Weinstein, Eli N., Naik, Nikhil, Madani, Ali·2023·Cell Systems

Abstract

Attention-based models trained on protein sequences have demonstrated incredible success at classification and generation tasks relevant for artificial-intelligence-driven protein design. However, we lack a sufficient understanding of how very large-scale models and data play a role in effective protein model development. We introduce a suite of protein language models, named ProGen2, that are scaled up to 6.4B parameters and trained on different sequence datasets drawn from over a billion proteins from genomic, metagenomic, and immune repertoire databases. ProGen2 models show state-of-the-art performance in capturing the distribution of observed evolutionary sequences, generating novel viable sequences, and predicting protein fitness without additional fine-tuning. As large model sizes and raw numbers of protein sequences continue to become more widely accessible, our results suggest that a growing emphasis needs to be placed on the data distribution provided to a protein sequence model. Our models and code are open sourced for widespread adoption in protein engineering. A record of this paper's Transparent Peer Review process is included in the supplemental information.

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Authors
Nijkamp, E., Ruffolo, J. A., Weinstein, E. N., Naik, N., & Madani, A.
Affiliations
  • Salesforce (United States) (US)
  • Johns Hopkins University (US)
  • Columbia University (US)
Corresponding author
Madani, Ali
Venue
Cell Systems
Publisher
Elsevier BV
Published
2023-11
Volume
14
Issue
11
Pages
968-978.e3
ISSN
2405-4712 (ISSN-L)
OpenAlex
W4388024559
Cited by
480
References
57
Citations by year
2026: 150 · 2025: 169 · 2024: 112 · 2023: 39 · 2022: 9
FWCI
42.06
Type
journal article
Language
en
Open access
Locations
  • Cell Systems (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University) (cc-by)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Machine Learning in Bioinformatics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
Keywords
protein language models, protein sequence generation, protein fitness prediction, protein design, model scaling, data distribution, immune repertoire, attention-based models
MeSH terms
Amino Acid Sequence, Artificial Intelligence, Language, Proteins, Databases, Factual

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