3T4R:
reference: Structure of the C-terminal domain of lettuce necrotic yellows virus phosphoprotein., Martinez N, Ribeiro EA Jr, Leyrat C, Tarbouriech N, Ruigrok RW, Jamin M, J Virol. 2013 Sep;87(17):9569-78. doi: 10.1128/JVI.00999-13. Epub 2013 Jun 19. PMID: 23785215

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