1OKS:
reference: Crystal structure of the measles virus phosphoprotein domain responsible for the induced folding of the C-terminal domain of the nucleoprotein., Johansson K, Bourhis JM, Campanacci V, Cambillau C, Canard B, Longhi S, J Biol Chem 2003 Nov 7;278(45):44567-73. Epub 2003 Aug 27. PMID: 12944395

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