4AZG:
reference: Inhibition of the family 20 glycoside hydrolase catalytic modules in the Streptococcus pneumoniae exo-beta-d-N-acetylglucosaminidase, StrH., Pluvinage B, Stubbs KA, Hattie M, Vocadlo DJ, Boraston AB, Org Biomol Chem. 2013 Oct 16. PMID: 24132305

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