MiLaSol: Modeling Protein Solubility by Mixing Up Multiple Protein Language Models

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ID: 325067
2026
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Abstract
Abstract Motivation Protein solubility is a critical property that significantly impacts therapeutic efficacy and protein reengineering applications. Recent advances in machine learning and deep learning techniques provide unprecedented opportunities to develop predictive models for solubility, enabling more efficient protein design and optimization. This work is motivated by the potential of leveraging deep learning to address the solubility prediction challenge and to accelerate protein engineering workflows. Results Leveraging and combining multiple protein language model representations, our MiLaSol model attains 81% accuracy, outperforming prior methods, with the highest Matthews Correlation Coefficient (MCC) score of 0.63 demonstrating balanced performance across both soluble and insoluble proteins. Through simulated annealing optimization coupled with the Raygun model, we also present a computational method to reengineer insoluble protein variants into soluble forms, with predictions confirmed by multiple independent solubility prediction methods. Our results demonstrate the effectiveness of combining machine learning-based solubility prediction with generative optimization for protein engineering. Availability and Implementation MiLaSol is available at https://github.com/weiweiloutufts/milasol An archived version of the code at the time of submission can be found at https://doi.org/10.5281/zenodo.21495202
Reference Key
openalex_W7203444561 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Weiwei Lou, Mert Erden, Lenore Cowen
Journal Bioinformatics advances
Year 2026
DOI
10.1093/bioadv/vbag233
URL
https://doi.org/10.1093/bioadv/vbag233
Keywords Keywords not found

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