| 1WAQ: reference: A single residue of GDF-5 defines binding specificity to BMP receptor IB., Nickel J, Kotzsch A, Sebald W, Mueller TD, J Mol Biol. 2005 Jun 24;349(5):933-47. Epub 2005 Apr 22. PMID: 15890363 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).