2ZWI:
reference: Crystal structure of alpha/beta-galactoside alpha2,3-sialyltransferase from a luminous marine bacterium, Photobacterium phosphoreum., Iwatani T, Okino N, Sakakura M, Kajiwara H, Takakura Y, Kimura M, Ito M, Yamamoto T, Kakuta Y, FEBS Lett. 2009 May 23. PMID: 19467231

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