1MAL:
reference: Structural basis for sugar translocation through maltoporin channels at 3.1 A resolution., Schirmer T, Keller TA, Wang YF, Rosenbusch JP, Science 1995 Jan 27;267(5197):512-4. PMID: 7824948

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