TY - RPRT TI - Affinity purification contaminants identified by cryo-EM and mass spectrometry AU - Belcher, E. R. AU - Hardwick, S. W. AU - Maia de Oliveira, T. AU - Hyvonen, M. PY - 2026 DO - 10.64898/2026.03.19.712978 UR - https://www.biorxiv.org/content/10.64898/2026.03.19.712978v1 ID - 10.64898/2026.03.19.712978 ER -