5ZUG:
reference: Crystal structure of the bacterial acetate transporter SatP reveals that it forms a hexameric channel., Sun P, Li J, Zhang X, Guan Z, Xiao Q, Zhao C, Song M, Zhou Y, Mou L, Ke M, Guo L, Geng J, Deng D, J Biol Chem. 2018 Dec 14;293(50):19492-19500. doi: 10.1074/jbc.RA118.003876. Epub, 2018 Oct 17. PMID: 30333234

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