1PMC:
reference: Solution structure of PMP-C: a new fold in the group of small serine proteinase inhibitors., Mer G, Hietter H, Kellenberger C, Renatus M, Luu B, Lefevre JF, J Mol Biol 1996 Apr 26;258(1):158-71. PMID: 8613985

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