2KY0:
reference: RNA Internal Loops with Tandem AG Pairs: The Structure of the 5 GAGU/3 UGAG Loop can be Dramatically Different from Others, Including 5 AAGU/3 UGAA., Hammond NB, Tolbert BS, Kierzek R, Turner DH, Kennedy SD, Biochemistry. 2010 May 20. PMID: 20481618

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