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PTM-dCN: Latent Space Control for Post-translational Modification-aware Protein Design

Zhang, S.; Huang, T.; Chen, E.; Qing, R.

2026-05-11 bioinformatics
10.64898/2026.05.06.714367 bioRxiv
Show abstract

AO_SCPLOWBSTRACTC_SCPLOWPost-translational modifications (PTMs) are critical for protein function, yet their precise design by harnessing site specific information derived from native proteins remains challenging. Here, we present a deep learning-based PTM design framework that integrates latent diffusion models with ControlNet for sequence generation with site-specific PTM-control. The framework incorporates a PTM-aware protein language model featuring extractor, trained on a curated SwissProt PTM dataset with specialized modification tokens. Through de novo generation of protein sequences with designated PTM sites, our framework facilitates the exploration of PTM-driven functional landscapes and advances position-aware protein engineering.

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