6EI3:
reference: Proton movement and coupling in the POT family of peptide transporters., Parker JL, Li C, Brinth A, Wang Z, Vogeley L, Solcan N, Ledderboge-Vucinic G, Swanson JMJ, Caffrey M, Voth GA, Newstead S, Proc Natl Acad Sci U S A. 2017 Nov 27. pii: 1710727114. doi:, 10.1073/pnas.1710727114. PMID: 29180426

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