| 4FCQ: reference: Targeting conserved water molecules: Design of 4-aryl-5-cyanopyrrolo[2,3-d]pyrimidine Hsp90 inhibitors using fragment-based screening and structure-based optimization., Davies NG, Browne H, Davis B, Drysdale MJ, Foloppe N, Geoffrey S, Gibbons B, Hart T, Hubbard R, Jensen MR, Mansell H, Massey A, Matassova N, Moore JD, Murray J, Pratt R, Ray S, Robertson A, Roughley SD, Schoepfer J, Scriven K, Simmonite H, Stokes S, Surgenor A, Webb P, Wood M, Wright L, Brough P, Bioorg Med Chem. 2012 Nov 15;20(22):6770-89. doi: 10.1016/j.bmc.2012.08.050. Epub, 2012 Sep 4. PMID: 23018093 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).