1K2G:
reference: Solution structure of an RNA fragment with the P7/P9.0 region and the 3'-terminal guanosine of the tetrahymena group I intron., Kitamura A, Muto Y, Watanabe S, Kim I, Ito T, Nishiya Y, Sakamoto K, Ohtsuki T, Kawai G, Watanabe K, Hosono K, Takaku H, Katoh E, Yamazaki T, Inoue T, Yokoyama S, RNA 2002 Apr;8(4):440-51. PMID: 11991639

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