4WPM:
reference: Structural characterization of the principal mRNA-export factor Mex67-Mtr2 from Chaetomium thermophilum., Aibara S, Valkov E, Lamers MH, Dimitrova L, Hurt E, Stewart M, Acta Crystallogr F Struct Biol Commun. 2015 Jul;71(Pt 7):876-88. doi:, 10.1107/S2053230X15008766. Epub 2015 Jun 27. PMID: 26144233

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