| 6H7U: reference: Structural basis for prodrug recognition by the SLC15 family of proton-coupled peptide transporters., Minhas GS, Newstead S, Proc Natl Acad Sci U S A. 2019 Jan 15;116(3):804-809. doi:, 10.1073/pnas.1813715116. Epub 2019 Jan 2. PMID: 30602453 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).