| 5Z55: reference: Backbone and side-chain chemical shift assignments of the kringle domain of human receptor tyrosine kinase-like orphan receptor 1 (ROR1)., Ma X, Zhang Y, Liu B, Yang J, Hu K, Biomol NMR Assign. 2018 Apr;12(1):145-148. doi: 10.1007/s12104-017-9797-9. Epub, 2018 Jan 8. PMID: 29313214 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).