3B44:
reference: The role of L1 loop in the mechanism of rhomboid intramembrane protease GlpG., Wang Y, Maegawa S, Akiyama Y, Ha Y, J Mol Biol. 2007 Dec 7;374(4):1104-13. Epub 2007 Oct 11. PMID: 17976648

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