We found that Aβ fibrils at plaque edges form a complex with the U1 snRNP. U1-70k is the most-correlated insoluble protein with Aβ in AD. Previously thought to be intracellular in tangles, but we find it’s directly bound to Aβ. With @raflynn5.bsky.social. www.biorxiv.org/content/10.6...
