1JO7:
reference: Structural features of an influenza virus promoter and their implications for viral RNA synthesis., Bae SH, Cheong HK, Lee JH, Cheong C, Kainosho M, Choi BS, Proc Natl Acad Sci U S A 2001 Sep 11;98(19):10602-7. PMID: 11553808

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