Cited by 361vaccines and immunoinformatics approachesEvolution and Genetic DynamicsSARS-CoV-2 and COVID-19 Research

Learning the language of viral evolution and escape

Open access
Hie, Brian, Zhong, Ellen D., Berger, Bonnie, Bryson, Bryan·2021·Science

Published version of a preprint

Abstract

Natural language predicts viral escape: Viral mutations that evade neutralizing antibodies, an occurrence known as viral escape, can occur and may impede the development of vaccines. To predict which mutations may lead to viral escape, Hie et al. used a machine learning technique for natural language processing with two components: grammar (or syntax) and meaning (or semantics) (see the Perspective by Kim and Przytycka). Three different unsupervised language models were constructed for influenza A hemagglutinin, HIV-1 envelope glycoprotein, and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike glycoprotein. Semantic landscapes for these viruses predicted viral escape mutations that produce sequences that are syntactically and/or grammatically correct but effectively different in semantics and thus able to evade the immune system. Science , this issue p. 284 ; see also p. 233

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  • The B.1.617 lineage, also known as the Delta variant, contains two mutations (L452R and T478K) in the RBD that facilitate viral escape.

    “For example, the B.1.617 lineage, also known as the Delta variant, contains two mutations (L452R and T478K) in the RBD that facilitate viral escape—the ability of viruses to evade the immune system and cause disease (22).”
  • The L452R mutation is located at the periphery of the receptor binding motif (RBM) and reduces neutralizing activity by antibodies.

    “The L452R mutation is located at the periphery of the receptor binding motif (RBM) and is found to reduce neutralizing activity by antibodies.”
  • The T478K mutation in the RBD, located within the epitope region in the RBM, is associated with antibody escape.

    “The T478K mutation in the RBD, located within the epitope region in the RBM, is also associated with antibody escape.”
  • When trained on tens of thousands of evolutionarily related proteins, the learned probability mass function describing the empirical distribution over naturally occurring sequences has shown promise for predicting the fitness of sequence variants.

    “When trained on tens of thousands of evolutionarily related proteins, the learned probability mass function describing the empirical distribution over naturally occurring sequences has shown promise for predicting the fitness of sequence variants 29-31.”
  • Language models learn the probability of a sequence occurring and this can be directly applied to predict the fitness of sequence mutations.

    “Language models learn the probability of a sequence occurring and this can be directly applied to predict the fitness of sequence mutations 29-31 .”

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Research works printed but not linked: 1

  1. Dai, A.M., and Le, Q. V. (2015). Semi-supervised sequence learning. Adv. Neural Inf. Process. Syst. 3079-3087.

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Authors
Hie, B., Zhong, E. D., Berger, B., & Bryson, B.
Affiliations
  • Ragon Institute of MGH, MIT and Harvard (US)
  • Massachusetts Institute of Technology (US)
Corresponding author
  • Berger, Bonnie
  • Bryson, Bryan
Venue
Science
Published
2021-01-15
Volume
371
Issue
6526
Pages
284-288
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W3121000782
Cited by
361
References
73
Citations by year
2026: 72 · 2025: 66 · 2024: 70 · 2023: 61 · 2022: 57 · 2021: 35
FWCI
17.72
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Science (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation (Graduate Research Fellowship)
  • National Institutes of Health (R01 GM081871)
  • U.S. Department of Defense (National Defense Science and Engineering Graduate Fellowship (NDSEG))
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
Keywords
viral immune evasion, immune evasion, escape mutations, viral evolution, influenza hemagglutinin, HIV-1 envelope glycoprotein, SARS-CoV-2 spike protein, language models, machine learning, viral infectivity, vaccine design
MeSH terms
Protein Domains, COVID-19, SARS-CoV-2, Acquired Immunodeficiency Syndrome, Binding Sites, Humans, Influenza, Human, Mutation, Influenza A virus, HIV-1, Evolution, Molecular, Hemagglutinin Glycoproteins, Influenza Virus, env Gene Products, Human Immunodeficiency Virus, Spike Glycoprotein, Coronavirus

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