3QNF:
reference: Crystal structures of the endoplasmic reticulum aminopeptidase-1 (ERAP1) reveal the molecular basis for N-terminal peptide trimming., Kochan G, Krojer T, Harvey D, Fischer R, Chen L, Vollmar M, von Delft F, Kavanagh KL, Brown MA, Bowness P, Wordsworth P, Kessler BM, Oppermann U, Proc Natl Acad Sci U S A. 2011 May 10;108(19):7745-50. Epub 2011 Apr 20. PMID: 21508329

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