1CRN:
reference: Water structure of a hydrophobic protein at atomic resolution: Pentagon rings of water molecules in crystals of crambin., Teeter MM, Proc Natl Acad Sci U S A. 1984 Oct;81(19):6014-6018. PMID: 16593516

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).