2JM4: The Solution Nmr Structure Of The Relaxin (Rxfp1) Receptor Ldla Module.
reference: The NMR solution structure of the relaxin (RXFP1) receptor lipoprotein receptor class A module and identification of key residues in the N-terminal region of the module that mediate receptor activation., Hopkins EJ, Layfield S, Ferraro T, Bathgate RA, Gooley PR, J Biol Chem. 2007 Feb 9;282(6):4172-84. Epub 2006 Dec 4. PMID: 17148455

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).