2KK9:
reference: Anti-group A streptococcal vaccine epitope: structure,stability and its ability to interact with HLA class II molecules., Guilherme L, Alba MP, Ferreira FM, Oshiro SE, Higa F, Patarroyo ME, Kalil J, J Biol Chem. 2010 Dec 17. PMID: 21169359

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