2M4H:
reference: Structures of the Compact Helical Core Domains of Feline Calicivirus and Murine Norovirus VPg proteins., Leen EN, Kwok KY, Birtley JR, Simpson PJ, Subba-Reddy CV, Chaudhry Y, Sosnovtsev SV, Green KY, Prater SN, Young JC, Chung LM, Marchant J, Roberts LO, Kao CC, Matthews S, Goodfellow IG, Curry S, J Virol. 2013 Mar 13. PMID: 23487472

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