2LN7:
reference: Solution Structure of the Sortase Required for Efficient Production of Infectious Bacillus anthracis Spores., Robson SA, Jacobitz AW, Phillips ML, Clubb RT, Biochemistry. 2012 Oct 9;51(40):7953-63. doi: 10.1021/bi300867t. Epub 2012 Sep, 27. PMID: 22974341

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