4CGK:
reference: Structural basis of PcsB-mediated cell separation in Streptococcus pneumoniae., Bartual SG, Straume D, Stamsas GA, Munoz IG, Alfonso C, Martinez-Ripoll M, Havarstein LS, Hermoso JA, Nat Commun. 2014 May 8;5:3842. doi: 10.1038/ncomms4842. PMID: 24804636

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