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Bibliographic Details
Main Authors: Luo, Ling, Jiang, Wenbin, Chang, Hongyuan, Wang, Xinkang, Zhang, Xushi, Xiong, Yueting, Tong, Mengsha, Yu, Rongshan
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2602.04916
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Table of Contents:
  • Large language models (LLMs) have significantly advanced protein representation learning. However, their capacity to interpret and design antibodies through natural language remains limited. To address this challenge, we present AFD-Instruction, the first large-scale instruction dataset with functional annotations tailored to antibodies. This dataset encompasses two key components: antibody understanding, which infers functional attributes directly from sequences, and antibody design, which enables de novo sequence generation under functional constraints. These components provide explicit sequence-function alignment and support antibody design guided by natural language instructions. Extensive instruction-tuning experiments on general-purpose LLMs demonstrate that AFD-Instruction consistently improves performance across diverse antibody-related tasks. By linking antibody sequences with textual descriptions of function, AFD-Instruction establishes a new foundation for advancing antibody modeling and accelerating therapeutic discovery.