As substitutes for antisense and tripler oligonucleotides, oligopeptides containing N-beta-(thymin-1-ylacetyl) beta-aminoalanine and N-beta-(cytosin-1-ylacetyl) beta-aminoalanine moieties were synthesized on solid support by using standard Boc-chemistry. The obtained peptide containing ten thymine bases was shown to form a hybrid duplex with a complementary oligo DNA, dA(10), with a melting temperature (Tm) of 36.5 degrees C at pH 7.0. (C) 1997 Elsevier Science Ltd. All rights reserved.
Hybridization properties of nucleic acid analogs containing β-aminoalanine modified with nucleobases
Oligopeptides containing Nβ-(thymin-1-ylacetyl)-β-aminoalanine and Nβ-(cytosin-1-ylacetyl)-β-aminoalanine moieties synthesized on a solid phase using standard Boc chemistry showed hybridization properties with single stranded DNA and RNA, and also with double stranded DNA, at pH 7.0.
使用标准 Boc 化学方法在固相上合成的含有 Nδ-(百里酚-1-基乙酰基)-δ-氨基丙氨酸和 Nδ-(胞嘧啶-1-基乙酰基)-δ-氨基丙氨酸的寡肽在 pH 值为 7.0 时显示出与单链 DNA 和 RNA 以及双链 DNA 的杂交特性。