Zero-Shot Learning with Subsequence Reordering Pretraining for Compound-Protein Interaction

Fuente: arXiv
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Auteurs principaux: Zhang, Hongzhi, Liu, Zhonglie, Meng, Kun, Chen, Jiameng, Wu, Jia, Du, Bo, Lin, Di, Che, Yan, Hu, Wenbin
Format: Preprint
Publié: 2025
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author Zhang, Hongzhi
Liu, Zhonglie
Meng, Kun
Chen, Jiameng
Wu, Jia
Du, Bo
Lin, Di
Che, Yan
Hu, Wenbin
author_facet Zhang, Hongzhi
Liu, Zhonglie
Meng, Kun
Chen, Jiameng
Wu, Jia
Du, Bo
Lin, Di
Che, Yan
Hu, Wenbin
contents Given the vastness of chemical space and the ongoing emergence of previously uncharacterized proteins, zero-shot compound-protein interaction (CPI) prediction better reflects the practical challenges and requirements of real-world drug development. Although existing methods perform adequately during certain CPI tasks, they still face the following challenges: (1) Representation learning from local or complete protein sequences often overlooks the complex interdependencies between subsequences, which are essential for predicting spatial structures and binding properties. (2) Dependence on large-scale or scarce multimodal protein datasets demands significant training data and computational resources, limiting scalability and efficiency. To address these challenges, we propose a novel approach that pretrains protein representations for CPI prediction tasks using subsequence reordering, explicitly capturing the dependencies between protein subsequences. Furthermore, we apply length-variable protein augmentation to ensure excellent pretraining performance on small training datasets. To evaluate the model's effectiveness and zero-shot learning ability, we combine it with various baseline methods. The results demonstrate that our approach can improve the baseline model's performance on the CPI task, especially in the challenging zero-shot scenario. Compared to existing pre-training models, our model demonstrates superior performance, particularly in data-scarce scenarios where training samples are limited. Our implementation is available at https://github.com/Hoch-Zhang/PSRP-CPI.
format Preprint
id arxiv_https___arxiv_org_abs_2507_20925
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Zero-Shot Learning with Subsequence Reordering Pretraining for Compound-Protein Interaction
Zhang, Hongzhi
Liu, Zhonglie
Meng, Kun
Chen, Jiameng
Wu, Jia
Du, Bo
Lin, Di
Che, Yan
Hu, Wenbin
Machine Learning
Quantitative Methods
Given the vastness of chemical space and the ongoing emergence of previously uncharacterized proteins, zero-shot compound-protein interaction (CPI) prediction better reflects the practical challenges and requirements of real-world drug development. Although existing methods perform adequately during certain CPI tasks, they still face the following challenges: (1) Representation learning from local or complete protein sequences often overlooks the complex interdependencies between subsequences, which are essential for predicting spatial structures and binding properties. (2) Dependence on large-scale or scarce multimodal protein datasets demands significant training data and computational resources, limiting scalability and efficiency. To address these challenges, we propose a novel approach that pretrains protein representations for CPI prediction tasks using subsequence reordering, explicitly capturing the dependencies between protein subsequences. Furthermore, we apply length-variable protein augmentation to ensure excellent pretraining performance on small training datasets. To evaluate the model's effectiveness and zero-shot learning ability, we combine it with various baseline methods. The results demonstrate that our approach can improve the baseline model's performance on the CPI task, especially in the challenging zero-shot scenario. Compared to existing pre-training models, our model demonstrates superior performance, particularly in data-scarce scenarios where training samples are limited. Our implementation is available at https://github.com/Hoch-Zhang/PSRP-CPI.
title Zero-Shot Learning with Subsequence Reordering Pretraining for Compound-Protein Interaction
topic Machine Learning
Quantitative Methods
url https://arxiv.org/abs/2507.20925