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Deciphering antibody affinity maturation with language models and weakly supervised learning

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arxiv 2112.07782 v1 pith:MRZVQWVZ submitted 2021-12-14 q-bio.BM cs.LG

classification q-bio.BMcs.LG
keywords antibodiesimmunelanguagemodelssequencesaffinityantibodybinding
verification ladder T0 review T1 audit T2 compute T3 formal
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In response to pathogens, the adaptive immune system generates specific antibodies that bind and neutralize foreign antigens. Understanding the composition of an individual's immune repertoire can provide insights into this process and reveal potential therapeutic antibodies. In this work, we explore the application of antibody-specific language models to aid understanding of immune repertoires. We introduce AntiBERTy, a language model trained on 558M natural antibody sequences. We find that within repertoires, our model clusters antibodies into trajectories resembling affinity maturation. Importantly, we show that models trained to predict highly redundant sequences under a multiple instance learning framework identify key binding residues in the process. With further development, the methods presented here will provide new insights into antigen binding from repertoire sequences alone.

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Forward citations

Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Steering Protein Family Design through Profile Bayesian Flow

    q-bio.BM 2025-02 conditional novelty 6.0 of 10

    ProfileBFN adapts Bayesian flow networks to accept protein-family profiles, enabling diverse, novel, and apparently functional family protein generation from single-sequence training.

  2. Antigen-specific Antibody Multi-modal Foundation Model for Functional Antibody Design

    q-bio.BM 2026-07 reject novelty 5.0 of 10

    AAMFM combines ESM3, an antigen-geometry adapter, and Cal-DPO preference optimization rewarded by AlphaFold3-style scores to design antibody CDRs and structures, reporting higher predicted binding scores than prior methods.

  3. Conditionally Site-Independent Neural Evolution of Antibody Sequences

    cs.LG 2026-02 conditional novelty 5.0 of 10

    A neural continuous-time Markov model of antibody affinity maturation that beats language models on fitness prediction and steers sampling toward antigen-specific binders.

  4. Antibody Design and Optimization with Multi-scale Equivariant Graph Diffusion Models for Accurate Complex Antigen Binding

    cs.LG 2025-06 conditional novelty 5.0 of 10

    AbMEGD, a fusion of ViS-MP and IPA inside a diffusion process, reports modest CDR-H3 gains over DiffAb on SAbDab.

  5. AffinityFlow: Guided Flows for Antibody Affinity Maturation

    cs.LG 2025-02 reject novelty 5.0 of 10

    AffinityFlow guides AlphaFlow structure generation toward low Rosetta binding energy, then inverse-folds the structures to propose antibody mutations, and reports top scores on a computational affinity maturation benchmark.

  6. A Comprehensive Review of Protein Language Models

    q-bio.BM 2025-02 conditional novelty 2.0 of 10

    A survey paper that catalogs protein language models, their architectures, training data, benchmarks, and tools, but lacks a systematic methodology and contains several factual errors.

  7. Sequence-based protein-protein interaction prediction and its applications in drug discovery

    q-bio.BM 2025-07 conditional

    A comprehensive survey of sequence-based protein-protein interaction prediction methods, their evaluation pitfalls, and their applications in drug discovery.

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