2H85:
reference: Crystal structure and mechanistic determinants of SARS coronavirus nonstructural protein 15 define an endoribonuclease family., Ricagno S, Egloff MP, Ulferts R, Coutard B, Nurizzo D, Campanacci V, Cambillau C, Ziebuhr J, Canard B, Proc Natl Acad Sci U S A. 2006 Aug 8;103(32):11892-11897. Epub 2006 Aug 1. PMID: 16882730

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