TY - RPRT TI - Cryo-EM structures of apo human Factor XIa reveal catalytic-domain flexibility and exposure of the Factor IX-binding site AU - Siutkina, A. I. AU - Neuhaus, A. AU - Taterra, M. AU - Bermudez, M. AU - Gatsogiannis, C. AU - Kalinin, D. V. PY - 2026 DO - 10.64898/2026.08.25.744604 UR - https://www.biorxiv.org/content/10.64898/2026.08.25.744604v1 ID - 10.64898/2026.08.25.744604 ER -