5MS1:
reference: The structures of a naturally empty cowpea mosaic virus particle and its genome-containing counterpart by cryo-electron microscopy., Hesketh EL, Meshcheriakova Y, Thompson RF, Lomonossoff GP, Ranson NA, Sci Rep. 2017 Apr 3;7(1):539. doi: 10.1038/s41598-017-00533-w. PMID: 28373698

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