AGENTIC-SYSTEMSMarch 20, 20261 min read12 views

CAPSUL: A Comprehensive Human Protein Benchmark for Subcellular Localization

Researchers introduce CAPSUL, a new benchmark integrating 3D structural data with fine-grained annotations for human protein subcellular localization to enhance drug discovery and biological function annotation.

CAPSUL: A Comprehensive Human Protein Benchmark for Subcellular Localization

Subcellular localization is a crucial biological task for drug target identification and function annotation. Although it has been biologically realized that subcellular localization is closely associated with protein structure, no existing dataset offers comprehensive 3D structural information with detailed subcellular localization annotations, thus severely hindering the application of promising structure-based models on this task.

To address this gap, we introduce a new benchmark called CAPSUL, a Comprehensive humAn Protein benchmark for SUbcellular Localization. It features a dataset that integrates diverse 3D structural representations with fine-grained subcellular localization annotations carefully curated by domain experts.

We evaluate this benchmark using a variety of state-of-the-art sequence-based and structure-based models, showcasing the importance of involving structural features in this task. Furthermore, we explore reweighting and single-label classification strategies to facilitate future investigation on structure-based methods for this task.

Lastly, we showcase the powerful interpretability of structure-based methods through a case study on the Golgi apparatus, where we discover a decisive localization pattern α-helix from attention mechanisms, demonstrating the potential for bridging the gap with intuitive biological interpretability and paving the way for data-driven discoveries in cell biology.

Source: arXiv cs.AI Recent

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