A new generation of crystallographic validation tools for the Protein Data Bank

Randy J. Read, Paul D. Adams, W. Bryan Arendall, Axel T. Brunger, Paul Emsley, Robbie P. Joosten, Gerard J. Kleywegt, Eugene B. Krissinel, Thomas Lütteke, Zbyszek Otwinowski, Anastassis Perrakis, Jane S. Richardson, William H. Sheffler, Janet L. Smith, Ian J. Tickle, Gert Vriend, Peter H. Zwart