6ODM:
reference: Cryo-EM structures of herpes simplex virus type 1 portal vertex and packaged genome., Liu YT, Jih J, Dai X, Bi GQ, Zhou ZH, Nature. 2019 Jun;570(7760):257-261. doi: 10.1038/s41586-019-1248-6. Epub 2019 May, 29. PMID: 31142842

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