Mapping Differential Protein-Protein Interaction Networks using Affinity Purification Mass Spectrometry

التفاصيل البيبلوغرافية
العنوان: Mapping Differential Protein-Protein Interaction Networks using Affinity Purification Mass Spectrometry
المؤلفون: Kaushal, Prashant, Ummadi, Manisha R., Jang, Gwendolyn M., Delgado, Yennifer, Makanani, Sara K., Blanc, Sophie F., Winters, Decan M., Xu, Jiewei, Polacco, Benjamin, Zhou, Yuan, Stevenson, Erica, Eckhardt, Manon, Zuliani-Alvarez, Lorena, Kaake, Robyn, Swaney, Danielle L., Krogan, Nevan, Bouhaddou, Mehdi
سنة النشر: 2024
المجموعة: Quantitative Biology
مصطلحات موضوعية: Quantitative Biology - Quantitative Methods, Quantitative Biology - Molecular Networks
الوصف: Proteins congregate into complexes to perform fundamental cellular functions. Phenotypic outcomes, in health and disease, are often mechanistically driven by the remodeling of protein complexes by protein coding mutations or cellular signaling changes in response to molecular cues. Here, we present an affinity purification mass spectrometry (APMS) proteomics protocol to quantify and visualize global changes in protein protein interaction (PPI) networks between pairwise conditions. We describe steps for expressing affinity tagged bait proteins in mammalian cells, identifying purified protein complexes, quantifying differential PPIs, and visualizing differential PPI networks. Specifically, this protocol details steps for designing affinity tagged bait gene constructs, transfection, affinity purification, mass spectrometry sample preparation, data acquisition, database search, data quality control, PPI confidence scoring, cross run normalization, statistical data analysis, and differential PPI visualization. Our protocol discusses caveats and limitations with applicability across cell types and biological areas.
Comment: 29 pages, 3 figures
نوع الوثيقة: Working Paper
الوصول الحر: http://arxiv.org/abs/2405.09699Test
رقم الانضمام: edsarx.2405.09699
قاعدة البيانات: arXiv