5ZQB:
reference: Crystal structures of penicillin-binding protein D2 from Listeria monocytogenes: Structural basis for antibiotic specificity., Jeong JH, Cha HJ, Kim YG, Antimicrob Agents Chemother. 2018 Aug 6. pii: AAC.00796-18. doi:, 10.1128/AAC.00796-18. PMID: 30082290

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