1EDL:
reference: Solution structure of the E-domain of staphylococcal protein A., Starovasnik MA, Skelton NJ, O'Connell MP, Kelley RF, Reilly D, Fairbrother WJ, Biochemistry 1996 Dec 3;35(48):15558-69. PMID: 8952510

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