4MZ6:
reference: Phosphorylation adjacent to the nuclear localization signal of human dUTPase abolishes nuclear import: structural and mechanistic insights., Rona G, Marfori M, Borsos M, Scheer I, Takacs E, Toth J, Babos F, Magyar A, Erdei A, Bozoky Z, Buday L, Kobe B, Vertessy BG, Acta Crystallogr D Biol Crystallogr. 2013 Dec;69(Pt 12):2495-505. doi:, 10.1107/S0907444913023354. Epub 2013 Nov 19. PMID: 24311590

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