| 1IP7: reference: Role of amino acid residues in left-handed helical conformation for the conformational stability of a protein., Takano K, Yamagata Y, Yutani K, Proteins 2001 Nov 15;45(3):274-80. PMID: 11599030 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).