1E2A:
reference: The structure of enzyme IIAlactose from Lactococcus lactis reveals a new fold and points to possible interactions of a multicomponent system., Sliz P, Engelmann R, Hengstenberg W, Pai EF, Structure 1997 Jun 15;5(6):775-88. PMID: 9261069

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