Preference optimization of protein language models as a multi-objective binder design paradigm
On the map: LLM alignment / RLHF / preference optimisation → Preference optimization for molecular design
Abstract (arXiv)
We present a multi-objective binder design paradigm based on instruction fine-tuning and direct preference optimization (DPO) of autoregressive protein language models (pLMs). Multiple design objectives are encoded in the language model through direct optimization on expert curated preference sequence datasets comprising preferred and dispreferred distributions. We show the proposed alignment strategy enables ProtGPT2 to effectively design binders conditioned on specified receptors and a drug developability criterion. Generated binder samples demonstrate median isoelectric point (pI) improvements by 17%-60%.
Key facts. Cited by 4 papers in the map (data through 7 Oct 2026). Placed in Preference optimization for molecular design, one of 10 directions in LLM alignment / RLHF / preference optimisation. Builds on 13 of its 34 references that are in the map. First posted on arXiv 7 Mar 2024.
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13 of 34 references.
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Other references · 12
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- 2023QLoRA: Efficient Finetuning of Quantized LLMscited by 3,355
- 2015Neural Machine Translation of Rare Words with Subword Unitscited by 2,898
- 2018Hierarchical Neural Story Generationcited by 1,182
- 2022ProGen2: Exploring the Boundaries of Protein Language Modelscited by 156
- 2023Protein Design with Guided Discrete Diffusioncited by 154
- 2023A Multi-Modal Contrastive Diffusion Model for Therapeutic Peptide Generationcited by 10
- 2023Generative Antibody Design for Complementary Chain Pairing Sequences through Encoder-Decoder Language Modelcited by 5
- 2023Pairing interacting protein sequences using masked language modelingcited by 1
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Citing papers per year: 2024: 2; 2025: 2.
4 papers.
- 2024Boltzmann-Aligned Inverse Folding Model as a Predictor of Mutational Effects on Protein-Protein Interactionscited by 5
- 2024Improving Inverse Folding for Peptide Design with Diversity-regularized Direct Preference Optimizationcited by 5
- 2025Protein Inverse Folding From Structure Feedbackcited by 5
- 2025g-DPO: Scalable Preference Optimization for Protein Language Modelscited by 0
- 2025g-DPO: Scalable Preference Optimization for Protein Language Models22 Oct 2025
- 2025Protein Inverse Folding From Structure Feedback3 Jun 2025
- 2024Improving Inverse Folding for Peptide Design with Diversity-regularized Direct Preference Optimization25 Oct 2024
- 2024Boltzmann-Aligned Inverse Folding Model as a Predictor of Mutational Effects on Protein-Protein Interactions12 Oct 2024
Similar, not cited
Close in wording, no citation either way
- 2026ProteinOPD: Towards Effective and Efficient Preference Alignment for Protein Design
- 2025Improving Protein Sequence Design through Designability Preference Optimization
- 2026Property-driven Protein Inverse Folding With Multi-Objective Preference Alignment
- 2026Be Your Own Teacher: Steering Protein Language Models via Unsupervised Reward Optimization
- 2025Controllable Protein Sequence Generation with LLM Preference Optimization
- 2024Reinforcement Learning for Sequence Design Leveraging Protein Language Models
- 2025From Supervision to Exploration: What Does Protein Language Model Learn During Reinforcement Learning?
- 2026Scaffold-Conditioned Preference Triplets for Controllable Molecular Optimization with Large Language Models