6XWM:
reference: X-ray structure of LeuT in an inward-facing occluded conformation reveals mechanism of substrate release., Gotfryd K, Boesen T, Mortensen JS, Khelashvili G, Quick M, Terry DS, Missel JW, LeVine MV, Gourdon P, Blanchard SC, Javitch JA, Weinstein H, Loland CJ, Nissen P, Gether U, Nat Commun. 2020 Feb 21;11(1):1005. doi: 10.1038/s41467-020-14735-w. PMID: 32081981

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