Identification of TDP-43 - TAU interactions by XL-MS (DSS). The interactions were identified in for equimolar amount of TDP-43 - TAU and, as control, TDP-43 and MBP. After 30 minutes from the induction of phase separation, samples were either analyzed (bulk condition) or subjected to centrifugation (10min at 21’000g) to pellet the formed condensates.