2VW1:
reference: Crystal structure of the NanB sialidase from Streptococcus pneumoniae., Xu G, Potter JA, Russell RJ, Oggioni MR, Andrew PW, Taylor GL, J Mol Biol. 2008 Dec 12;384(2):436-49. Epub 2008 Sep 21. PMID: 18835278

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