The functional interactome of PYHIN immune regulators reveals IFIX is a sensor of viral DNA.

Data from ProteomeXchange, PXD ID: PXD001572. File: 2012_07_03_IFIXGFP_PD13.mzml. Published as part of . From the Abstract: {{i}} he human PYHIN proteins, AIM2, IFI16, IFIX, and MNDA, are critical regulators of immune response, transcription, apoptosis, and cell cycle. However, their protein interactions and underlying mechanisms remain largely uncharacterized. Here, we provide the interaction network for all PYHIN proteins and define a function in sensing of viral DNA for the previously uncharacterized IFIX protein. By designing a cell-based inducible system and integrating microscopy, immunoaffinity capture, quantitative mass spectrometry, and bioinformatics, we identify over 300 PYHIN interactions reflective of diverse functions, including DNA damage response, transcription regulation, intracellular signaling, and antiviral response ... {{/i}}