PreprintCited by 5,990Protein Structure and DynamicsMachine Learning in BioinformaticsEnzyme Structure and Function

The DOI matches its Crossref record; 93 of the 93 references it cites were found in a registry or an index; 9 of the 16 sources its claims cite were checked for support.

Evolutionary-scale prediction of atomic level protein structure with a language model

Open access

Abstract

Artificial intelligence has the potential to open insight into the structure of proteins at the scale of evolution. It has only recently been possible to extend protein structure prediction to two hundred million cataloged proteins. Characterizing the structures of the exponentially growing billions of protein sequences revealed by large scale gene sequencing experiments would necessitate a break-through in the speed of folding. Here we show that direct inference of structure from primary sequence using a large language model enables an order of magnitude speed-up in high resolution structure prediction. Leveraging the insight that language models learn evolutionary patterns across millions of sequences, we train models up to 15B parameters, the largest language model of proteins to date. As the language models are scaled they learn information that enables prediction of the three-dimensional structure of a protein at the resolution of individual atoms. This results in prediction that is up to 60x faster than state-of-the-art while maintaining resolution and accuracy. Building on this, we present the ESM Metage-nomic Atlas. This is the first large-scale structural characterization of metagenomic proteins, with more than 617 million structures. The atlas reveals more than 225 million high confidence predictions, including millions whose structures are novel in comparison with experimentally determined structures, giving an unprecedented view into the vast breadth and diversity of the structures of some of the least understood proteins on earth.

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

The paper introduces ESM-2 protein language models up to 15B parameters and ESMFold, an end-to-end single-sequence structure predictor that reaches atomic-resolution accuracy while being up to 60x faster than state-of-the-art pipelines. It uses ESMFold to build the ESM Metagenomic Atlas, folding over 617 million MGnify90 sequences and identifying more than 225 million high-confidence structures, many novel relative to known sequences and structures.

Key findings

  • Scaling ESM-2 from 8M to 15B parameters improves language modeling and structural information: validation perplexity falls from 10.45 to 6.37, unsupervised long-range contact precision (LR P@L) rises from 0.16 to 0.54, and structure-module-only LDDT rises from 0.48 to 0.72. The 15B model reaches TM-score 0.71 on CAMEO and 0.54 on CASP14, 0.064 higher than the 150M ESM-2 model on both.
  • ESMFold achieves average TM-score 0.83 on CAMEO and 0.68 on CASP14, compared with AlphaFold2 at 0.88 and 0.85 and RosettaFold at 0.82 on CAMEO. On a single NVIDIA V100 GPU, ESMFold predicts a 384-residue protein in 14.2 seconds, 6x faster than a single AlphaFold2 model, with up to ~60x speedup on shorter sequences; MSA search alone can take over 10 minutes.
  • The ESM Metagenomic Atlas folds over 617 million MGnify90 sequences in 2 weeks on ~2,000 GPUs, yielding ~365 million good-confidence predictions (mean pLDDT > 0.5 and pTM > 0.5) and ~225 million high-confidence predictions (mean pLDDT > 0.7 and pTM > 0.7). In a 1-million high-confidence sample, 76.8% have <90% sequence identity to UniRef90, 12.6% have no PDB structure with TM-score > 0.5, and 10.4% have both low structural similarity (TM-score ≤ 0.5) and no close sequence homolog (<30% identity).
  • Confidence is well calibrated: for high-confidence predictions (pLDDT > 0.7), CAMEO accuracy is comparable to AlphaFold2 (ESMFold LDDT = 0.83, AlphaFold2 LDDT = 0.85); for very high confidence (pLDDT > 0.9), median all-atom RMSD95 is 1.42 Å and backbone RMSD95 is 0.94 Å.

Methods

  • ESM-2 is a BERT-style transformer masked language model trained on UniRef50/UniRef90 sequences, scaled from 8M to 15B parameters, with models trained for up to 500K updates (15B for 270K updates) and evaluated on held-out UniRef50 clusters.
  • ESMFold adds a 48-block folding head to a frozen 3B-parameter ESM-2, trained on ~25K PDB clusters covering ~325K experimentally determined chains plus ~12M AlphaFold2-predicted structures; evaluation uses temporally held-out CAMEO (194 proteins) and CASP14 (51 targets) test sets.
  • Metagenomic analysis folded MGnify90 sequences of length 20–1024, covering 99% of the database, and used Foldseek, MMseqs2, blastp, and UMAP for structural and sequence similarity analyses.

Limitations

  • The paper states that ESMFold was not trained on protein complexes, so complex prediction is out of distribution; it also notes that ablating MSAs for AlphaFold and RosettaFold is an artificial single-sequence setting because those models were not explicitly trained for single sequences.
  • The paper states that calibration becomes critical as structure prediction scales, and that current models are far from the limit of scale in parameters, sequence data, and compute.
  • Evident from the text: this is a bioRxiv preprint not certified by peer review; ESMFold is less accurate than AlphaFold2 overall on CAMEO (0.83 vs 0.88 TM-score) and CASP14 (0.68 vs 0.85), with a larger gap on hard CAMEO targets (0.45 vs 0.62).

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1101/2022.07.20.500902

Cites

93 of 93 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

9 of 16 cited sources checked · 5 supported · 0 flagged · accuracy not yet measured

Show all 74 claims

  • It may state two separate claims as one. 32
  • Probably not a substantial claim. 27
  • The quote only partly states this claim. 1
  • Borderline: one of the tests for a substantial claim is unclear. 1
57 of 57
  • The paper relies on this without support.

    AlphaFold2 predictions provide a valid reference for assessing the accuracy of ESMFold predictions on metagenomic proteins.

    “We also assess calibration against AlphaFold predictions on metagenomic proteins.”
    “On a random subset of ∼ 4K metagenomic sequences, there is a high correlation (Pearson r = 0.79) between ESMFold pLDDT and the LDDT to AlphaFold2 predictions (Fig. 3A).”
  • The paper relies on this without support.

    The MGnify90 database is representative of metagenomic protein diversity.

    “We fold over 617 million sequences from the MGnify90 database (25).”
  • The paper relies on this without support.

    The PDB database provides a comprehensive reference for experimentally determined protein structures.

    “no structure is found with TM-score over 0.5 in the PDB database”
    “no experimentally determined structure with a similar fold could be identified”
  • The paper relies on this without support.

    Absolute positional encoding methods don't extrapolate well beyond the context window they are trained on.

    “However, absolute positional encoding methods don't extrapolate well beyond the context window they are trained on.”
  • The paper relies on this without support.

    Orphan proteins are very challenging for current structure prediction models due to a lack of evolutionary information.

    “Due to a lack of evolutionary information, these sequences can be very challenging for current structure prediction models.”
5 of 5

Claims other papers make about this one

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Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Conflicting PDB identifier for the nuclease example

    Minor

    The main text identifies the comparison structure as PDB 3HR4 A, but the Figure 4 caption identifies it as PDB 3H4R. These are different identifiers for the same described example.

1 of 1

Citations

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Research works printed but not linked: 1

  1. Ashish Vaswani , Noam Shazeer , Niki Parmar , Jakob Uszkoreit , Llion Jones , Aidan N Gomez , Łukasz Kaiser , and Illia Polosukhin . Attention Is All You Need. In Advances in Neural Information Processing Systems, pages 5998–6008, 2017. URL https://papers.nips.cc/paper/7181-attention-is-all-you-need.pdf.

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Metadata

Authors
Lin, Z., Akin, H., Rao, R., Hie, B., Zhu, Z., Lu, W., Smetanin, N., Verkuil, R., Kabeli, O., Shmueli, Y., dos Santos Costa, A., Fazel-Zarandi, M., Sercu, T., Candido, S., & Rives, A.
Affiliations
  • New York University (US)
  • Stanford University (US)
Corresponding author
Rives, Alexander
Venue
Science
Publisher
openRxiv
Published
2022-07-21
Volume
379
Issue
6637
Pages
1123-1130
ISSN
0036-8075 (ISSN-L)
OpenAlex
W4327550249
Cited by
5,990
References
71
Citations by year
2026: 2468 · 2025: 1837 · 2024: 1170 · 2023: 485 · 2022: 23
FWCI
460.33
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Science (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (submittedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Machine Learning in Bioinformatics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Structural Biology › Enzyme Structure and Function
Keywords
protein structure prediction, large language models, protein evolution, atomic-scale structure, protein folding, structural diversity
MeSH terms
Machine Learning, Amino Acid Sequence, Protein Conformation, Proteins, Evolution, Molecular, Sequence Analysis, Protein

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