Oxy-peptide nucleic acid with a pyrrolidine ring that is configurationally optimized for hybridization with DNAElectronic supplementary information (ESI) available: details of synthesis and the spectral data of four stereoisomers of POPNA. See http://www.rsc.org/suppdata/cc/b4/b401057d/
作者:Mizuki Kitamatsu、Masanori Shigeyasu、Tomoyuki Okada、Masahiko Sisido
DOI:10.1039/b401057d
日期:——
Four stereoisomers of oxy-peptide nucleic acids containing ether linkages in the main chain and conformationally-restricted pyrrolidine rings (pyrrolidine-based oxy-PNA = POPNA) were newly synthesized and investigated for binding to DNA. cis-L-POPNA with 9 adenine bases formed the most stable hybrid with dT9. The POPNA showed high sequence specificity similar to that of the Nielsen-type PNA and sharper melting behavior in hybridization with DNA than the Nielsen-type PNA.
研究人员新合成了四种立体异构体的氧基肽核酸,其主链中含有醚键和构象受限的吡咯烷环(吡咯烷基氧基 PNA = POPNA),并研究了它们与 DNA 的结合。与尼尔森型 PNA 相比,POPNA 表现出与尼尔森型 PNA 相似的高度序列特异性,并且在与 DNA 杂交时有更明显的熔化行为。