2XWG:
reference: Structure of the sortase AcSrtC-1 from Actinomyces oris., Persson K, Acta Crystallogr D Biol Crystallogr. 2011 Mar;67(Pt 3):212-7. Epub 2011, Feb 15. PMID: 21358052

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