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The TREX-2 complex integrates mRNA nuclear export into the gene expression pathway and is based on a Sac3 scaffold to which Thp1, Sem1, Sus1, and Cdc31 bind. TREX-2 also binds the mRNA nuclear export factor, Mex67:Mtr2, through the Sac3 N-terminal region (Sac3N). Here, we characterize Chaetomium thermophilum TREX-2, show that the in vitro reconstituted complex has an annular structure, and define...
A key building block of the nuclear pore complex (NPC) is the Nup84 subcomplex that has been structurally analyzed predominantly in the yeast system. To expand this analysis and gain insight into the evolutionary conservation of its structure, we reconstituted an octameric Nup84 complex using the subunits from a thermophile, Chaetomium thermophilum (ct). This assembly carries Nup37 and Elys, which...
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