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Linear pairing complexes are presumably formed by peptide nucleic acids containing a backbone of alanyl amino acids with alternating configuration. The pairing of two strands is based on recognition of the nucleobases; however, unlike for DNA, stable self-pairing of a hexmer from adenine-substituted alanyl building blocks is possible for the PNA (1) described herein.
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Ulf Diederichsen (1996) studied this question.
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