5L9Q:
reference: Structural and functional analysis of Oceanobacillus iheyensis macrodomain reveals a network of waters involved in substrate binding and catalysis., Zapata-Perez R, Gil-Ortiz F, Martinez-Monino AB, Garcia-Saura AG, Juanhuix J, Sanchez-Ferrer A, Open Biol. 2017 Apr;7(4). pii: 160327. doi: 10.1098/rsob.160327. PMID: 28446708

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