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arXiv 2402.02004q-bio.BM
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通过少样本学习以最小湿实验数据提升蛋白质语言模型的效率

Enhancing the efficiency of protein language models with minimal wet-lab data through few-shot learning

Ziyi Zhou, Liang Zhang, Yuanxi Yu, Mingchen Li, Liang Hong, Pan Tan

AI总结:

本文提出FSFP训练策略,结合元迁移学习、学习排序和参数高效微调,在仅需数十个标记突变体的极端数据稀缺条件下显著提升蛋白质语言模型的适应度预测性能,并在87个数据集上验证其优越性。

摘要:

准确建模蛋白质适应度景观对于蛋白质工程具有重要意义。近年来,由于其容量和表示能力,预训练的蛋白质语言模型在无需实验数据的情况下预测蛋白质适应度方面已取得最先进性能。然而,它们的预测在准确性和可解释性方面均受到限制。此外,此类深度学习模型需要大量标记训练样本才能提升性能,这构成了实际障碍。在本工作中,我们引入了FSFP,一种能够在极端数据稀缺条件下有效优化蛋白质语言模型的训练策略。通过结合元迁移学习、学习排序和参数高效微调等技术,FSFP仅利用目标蛋白的数十个标记单点突变体即可显著提升多种蛋白质语言模型的性能。在87个深度突变扫描数据集上的实验凸显了其相对于无监督和有监督方法的优越性,揭示了其在促进AI引导的蛋白质设计方面的潜力。

英文摘要:

Accurately modeling the protein fitness landscapes holds great importance for protein engineering. Recently, due to their capacity and representation ability, pre-trained protein language models have achieved state-of-the-art performance in predicting protein fitness without experimental data. However, their predictions are limited in accuracy as well as interpretability. Furthermore, such deep learning models require abundant labeled training examples for performance improvements, posing a practical barrier. In this work, we introduce FSFP, a training strategy that can effectively optimize protein language models under extreme data scarcity. By combining the techniques of meta-transfer learning, learning to rank, and parameter-efficient fine-tuning, FSFP can significantly boost the performance of various protein language models using merely tens of labeled single-site mutants from the target protein. The experiments across 87 deep mutational scanning datasets underscore its superiority over both unsupervised and supervised approaches, revealing its potential in facilitating AI-guided protein design.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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