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The cryo-EM structure of the human core CPSF complex, containing CPSF160, WDR33, CPSF30 and Fip1 subunits, bound to its RNA target reveals the mechanism of PAS recognition.
MicroED structure of a peptide from the β2–α2 loop of the bank vole prion protein reveals a protofibril stabilized by a dense network of hydrogen bonds.