ArticleCell reports methods2025
Sensitive and specific affinity purification-mass spectrometry assisted by PafA-mediated proximity labeling.
Article in Cell reports methods, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Omics-Level Approaches to Studying Gammaherpesvirus Infection.Pathogens (Basel, Switzerland) · 2026Review
- Strategies for constructing context-specific protein-protein interaction networks.Briefings in bioinformatics · 2026Review
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Authors and funding
10 authors.
Funding
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Abstract
While affinity purification-mass spectrometry (AP-MS) has significantly advanced protein-protein interaction (PPI) studies, its limitations in detecting weak, transient, and membrane-associated interactions remain. To address these challenges, we introduced a proteomic method termed affinity purification coupled proximity labeling-mass spectrometry (APPLE-MS), which combines the high specificity of Twin-Strep tag enrichment with PafA-mediated proximity labeling. This method achieves improved sensitivity while maintaining high specificity (4.07-fold over AP-MS). APPLE-MS also revealed the dynamic mitochondrial interactome of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ORF9B during antiviral responses, while endogenous PIN1 profiling uncovered novel roles in DNA replication. Notably, APPLE-MS enabled in situ mapping of GLP-1 receptor complexes, demonstrating its unique capabilities for membrane PPI studies. This versatile method advances interactome research by providing comprehensive, physiologically relevant PPI networks, opening new opportunities for mechanistic discovery and therapeutic targeting.
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