2E1X:
reference: Structural role of the secondary active domain of HIV-2 NCp8 in multi-functionality., Matsui T, Kodera Y, Miyauchi E, Tanaka H, Endoh H, Komatsu H, Tanaka T, Kohno T, Maeda T, Biochem Biophys Res Commun. 2007 Jul 6;358(3):673-8. Epub 2007 May 4. PMID: 17511966

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