Exportin-T mediates the nuclear export of aminoacylated tRNAs [1,2]. Its budding yeast homologue, known as Los1, is involved in nuclear export of pre-tRNA and in re-export of mature tRNAs [3]. It binds to RanGTP and mature tRNAs cooperatively to form a nuclear export complex [4].

1: Structures of the tRNA export factor in the nuclear and cytosolic states. Cook AG, Fukuhara N, Jinek M, Conti E; Nature. 2009;461:60-65. PMID:19680239

2: Measures for the prevention of occupational cancer. Weaver NK; J Occup Med 1976;18:607-610. PMID:9660920

3: Regulation of tRNA bidirectional nuclear-cytoplasmic trafficking in Saccharomyces cerevisiae. Murthi A, Shaheen HH, Huang HY, Preston MA, Lai TP, Phizicky EM, Hopper AK; Mol Biol Cell. 2010;21:639-649. PMID:20032305

4: Steady-state nuclear localization of exportin-t involves RanGTP binding and two distinct nuclear pore complex interaction domains. Kuersten S, Arts GJ, Walther TC, Englmeier L, Mattaj IW; Mol Cell Biol. 2002;22:5708-5720. PMID:12138183