4Z26:
reference: A Mimivirus Enzyme that Participates in Viral Entry., Klose T, Herbst DA, Zhu H, Max JP, Kenttamaa HI, Rossmann MG, Structure. 2015 Jun 2;23(6):1058-65. doi: 10.1016/j.str.2015.03.023. Epub 2015, May 14. PMID: 25982526

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