S$^2$ALM: Sequence-Structure Pre-trained Large Language Model for Comprehensive Antibody Representation Learning

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Main Authors: Yin, Mingze, Zhou, Hanjing, Wu, Jialu, Zhu, Yiheng, Zhan, Yuxuan, Kong, Zitai, Xu, Hongxia, Hsieh, Chang-Yu, Chen, Jintai, Hou, Tingjun, Wu, Jian
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Published: 2024
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author Yin, Mingze
Zhou, Hanjing
Wu, Jialu
Zhu, Yiheng
Zhan, Yuxuan
Kong, Zitai
Xu, Hongxia
Hsieh, Chang-Yu
Chen, Jintai
Hou, Tingjun
Wu, Jian
author_facet Yin, Mingze
Zhou, Hanjing
Wu, Jialu
Zhu, Yiheng
Zhan, Yuxuan
Kong, Zitai
Xu, Hongxia
Hsieh, Chang-Yu
Chen, Jintai
Hou, Tingjun
Wu, Jian
contents Antibodies safeguard our health through their precise and potent binding to specific antigens, demonstrating promising therapeutic efficacy in the treatment of numerous diseases, including COVID-19. Recent advancements in biomedical language models have shown the great potential to interpret complex biological structures and functions. However, existing antibody specific models have a notable limitation that they lack explicit consideration for antibody structural information, despite the fact that both 1D sequence and 3D structure carry unique and complementary insights into antibody behavior and functionality. This paper proposes Sequence-Structure multi-level pre-trained Antibody Language Model (S$^2$ALM), combining holistic sequential and structural information in one unified, generic antibody foundation model. We construct a hierarchical pre-training paradigm incorporated with two customized multi-level training objectives to facilitate the modeling of comprehensive antibody representations. S$^2$ALM's representation space uncovers inherent functional binding mechanisms, biological evolution properties and structural interaction patterns. Pre-trained over 75 million sequences and 11.7 million structures, S$^2$ALM can be adopted for diverse downstream tasks: accurately predicting antigen-antibody binding affinities, precisely distinguishing B cell maturation stages, identifying antibody crucial binding positions, and specifically designing novel coronavirus-binding antibodies. Remarkably, S$^2$ALM outperforms well-established and renowned baselines and sets new state-of-the-art performance across extensive antibody specific understanding and generation tasks. S$^2$ALM's ability to model comprehensive and generalized representations further positions its potential to advance real-world therapeutic antibody development, potentially addressing unmet academic, industrial, and clinical needs.
format Preprint
id arxiv_https___arxiv_org_abs_2411_15215
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle S$^2$ALM: Sequence-Structure Pre-trained Large Language Model for Comprehensive Antibody Representation Learning
Yin, Mingze
Zhou, Hanjing
Wu, Jialu
Zhu, Yiheng
Zhan, Yuxuan
Kong, Zitai
Xu, Hongxia
Hsieh, Chang-Yu
Chen, Jintai
Hou, Tingjun
Wu, Jian
Machine Learning
Artificial Intelligence
Biomolecules
Antibodies safeguard our health through their precise and potent binding to specific antigens, demonstrating promising therapeutic efficacy in the treatment of numerous diseases, including COVID-19. Recent advancements in biomedical language models have shown the great potential to interpret complex biological structures and functions. However, existing antibody specific models have a notable limitation that they lack explicit consideration for antibody structural information, despite the fact that both 1D sequence and 3D structure carry unique and complementary insights into antibody behavior and functionality. This paper proposes Sequence-Structure multi-level pre-trained Antibody Language Model (S$^2$ALM), combining holistic sequential and structural information in one unified, generic antibody foundation model. We construct a hierarchical pre-training paradigm incorporated with two customized multi-level training objectives to facilitate the modeling of comprehensive antibody representations. S$^2$ALM's representation space uncovers inherent functional binding mechanisms, biological evolution properties and structural interaction patterns. Pre-trained over 75 million sequences and 11.7 million structures, S$^2$ALM can be adopted for diverse downstream tasks: accurately predicting antigen-antibody binding affinities, precisely distinguishing B cell maturation stages, identifying antibody crucial binding positions, and specifically designing novel coronavirus-binding antibodies. Remarkably, S$^2$ALM outperforms well-established and renowned baselines and sets new state-of-the-art performance across extensive antibody specific understanding and generation tasks. S$^2$ALM's ability to model comprehensive and generalized representations further positions its potential to advance real-world therapeutic antibody development, potentially addressing unmet academic, industrial, and clinical needs.
title S$^2$ALM: Sequence-Structure Pre-trained Large Language Model for Comprehensive Antibody Representation Learning
topic Machine Learning
Artificial Intelligence
Biomolecules
url https://arxiv.org/abs/2411.15215