The mitochondrial carrier pathway transports non-canonical substrates with an odd number of transmembrane segments.
Bmc Biology
Rampelt, Heike H; Sucec, Iva I; Bersch, Beate B; Horten, Patrick P; Perschil, Inge I; Martinou, Jean-Claude JC; van der Laan, Martin M; Wiedemann, Nils N; Schanda, Paul P; Pfanner, Nikolaus N