1LTA:
reference: Galactose-binding site in Escherichia coli heat-labile enterotoxin (LT) and cholera toxin (CT)., Merritt EA, Sixma TK, Kalk KH, van Zanten BA, Hol WG, Mol Microbiol 1994 Aug;13(4):745-53. PMID: 7997185

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