TY - RPRT TI - Improved chemistry restraints for crystallographic refinement by integrating the Amber force field into Phenix AU - Moriarty, N. W. AU - Janowski, P. A. AU - Swails, J. AU - Nguyen, H. AU - Richardson, J. S. AU - Case, D. A. AU - Adams, P. D. PY - 2019 DO - 10.1101/724567 UR - https://www.biorxiv.org/content/10.1101/724567v1 ID - 10.1101/724567 ER -