KRT18 and tauopathy: In accordance with previous reports (Mirbaha et al., 2015; Sanders et al., 2014; Wegmann et al., 2016; Wang et al., 2017), we also observed that sensors comprising only the K18 fragment show the best signal amplitude in response to extracellular seeds, including those obtained from brain lysates of a Tg mouse model of tauopathy.