1BUF:
reference: Sequence-specific local structural variations in solution structures of d(CGXX'CG)2 and d(CAXX'TG)2 self-complementary deoxyribonucleic acids., Lam SL, Au-Yeung SC, J Mol Biol 1997 Mar 7;266(4):745-60. PMID: 9102467

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