| 6CFB: reference: Isolation, Characterization, and Synthesis of the Barrettides: Disulfide-Containing Peptides from the Marine Sponge Geodia barretti., Carstens BB, Rosengren KJ, Gunasekera S, Schempp S, Bohlin L, Dahlstrom M, Clark RJ, Goransson U, J Nat Prod. 2015 Aug 28;78(8):1886-93. doi: 10.1021/acs.jnatprod.5b00210. Epub, 2015 Jul 29. PMID: 26222779 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).