1EFS:
reference: Solution conformation of an RNA--DNA hybrid duplex containing a pyrimidine RNA strand and a purine DNA strand., Hantz E, Larue V, Ladam P, Le Moyec L, Gouyette C, Huynh Dinh T, Int J Biol Macromol 2001 Apr 12;28(4):273-84. PMID: 11311717

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