101712-10-1Relevant articles and documents
Synthesis and triplex-forming properties of oligonucleotides capable of recognizing corresponding DNA duplexes containing four base pairs
Ohkubo, Akihiro,Yamada, Kenji,Ito, Yu,Yoshimura, Kiichi,Miyauchi, Koichiro,Kanamori, Takashi,Masaki, Yoshiaki,Seio, Kohji,Yuasa, Hideya,Sekine, Mitsuo
, p. 5675 - 5686 (2015)
A triplex-forming oligonucleotide (TFO) could be a useful molecular tool for gene therapy and specific gene modification. However, unmodified TFOs have two serious drawbacks: low binding affinities and high sequence-dependencies. In this paper, we propose
Synthesis of DNA Containing Modified Bases by Postsynthetic Substitution. Synthesis of Oligomers Containing 4-Substituted Thymine: O4-Alkylthymine, 5-Methylcytosine, N4-(Dimethylamino)-5-methylcytosine, and 4-Thiothymine
Xu, Yao-Zhong,Zheng, Qinguo,Swann, Peter F.
, p. 3839 - 3845 (1992)
A strategy is described for synthesis of oligomers modified in the 4-position of thymine by postsynthetic substitution. 4-Triazolothymine phosphoramidite monomer has been prepared in one step from thymine amidite monomer and incorporated into a 12 mer AGC
Synthesis of Oligodeoxyribonucleotides Containing Oleylamine Moieties
Andreev,Antsypovich,Volkov,Romanova,Hianik,Oretskaya
, p. 184 - 190 (2001)
A method for directional introduction of oleylamine residues to any position of oligodeoxyribonucleotides during their automated synthesis was developed. The presence of oleylamine residues in 3′- or 5′-terminal nucleotides was shown to have no effect on
Chemical synthesis of an artificially branched hairpin ribozyme variant with RNA cleavage activity
Ivanov, Sergei A.,Volkov, Eugene M.,Oretskaya, Tatiana S.,Müller, Sabine
, p. 9273 - 9281 (2007/10/03)
Due to the development in the field of RNA synthesis over the past decade of years, preparation of RNA oligonucleotides longer than 50 nucleotides is possible today. In this report, we describe the chemical preparation of a branched RNA molecule with RNA cleavage activity consisting of 81 nucleotides. It is derived from the hairpin ribozyme, a small catalytic RNA occurring in nature. The hairpin ribozyme consists of two separately folded domains (loop A and loop B domain), which can be joined in a number of different ways without loss of activity. In the construct presented here, 2′-deoxy-N4-(6- hydroxyhexyl)-5-methylcytidine was introduced to connect the loop B domain with the loop A domain via an artificial branch. The synthesized branched RNA is able to catalyze the cleavage of a number of suitable substrates. Compared with the corresponding non-branched reverse-joined ribozyme it cleaves its substrates only 5-fold slower. Surprisingly, no ligation activity could be detected.