Search Results - "Tarashima, Noriko"
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Gene Expression of 4′-Thioguanine DNA via 4′-Thiocytosine RNA
Published in Journal of the American Chemical Society (14-10-2020)“…DNA and RNA nucleotides are ubiquitous molecules that store and transmit genetic information. The emergence of synthetic elements that fulfill the function of…”
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Synthesis of a Cyclic Dinucleotide Analogue with Ambiguous Bases, 5‑Aminoimidazole-4-carboxamide
Published in Journal of organic chemistry (05-11-2021)“…Cyclic dinucleotides (CDNs) are second messengers composed of two purine nucleotides. In recent years, the structural diversity of CDNs and their functionality…”
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3
Rewriting the Central Dogma with Synthetic Genetic Polymers
Published in Chemical & pharmaceutical bulletin (01-05-2022)“…DNA and RNA are ubiquitous molecules responsible for storage and transmission of genetic information and together comprise the central dogma of molecular…”
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4
Unnatural Base Pairs for Synthetic Biology
Published in Chemical & pharmaceutical bulletin (2018)“…In this review, we have summarized the research effort into the development of unnatural base pairs beyond standard Watson–Crick (WC) base pairs for synthetic…”
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5
Replacement of oxygen with sulfur on the furanose ring of cyclic dinucleotides enhances the immunostimulatory effect via STING activation
Published in RSC medicinal chemistry (23-09-2021)“…Cyclic dinucleotides (CDNs) are secondary messengers composed of two purine nucleotides linked via two phosphodiester linkages: c-di-GMP, c-di-AMP,…”
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6
Synthesis and Behavior of DNA Oligomers Containing the Ambiguous Z-Nucleobase 5-Aminoimidazole-4-carboxamide
Published in Molecules (Basel, Switzerland) (06-04-2023)“…5-Amino-1-β-D-ribofuranosylimidazole-4-carboxamide 5'-monophosphate (ZMP) is a central intermediate in de novo purine nucleotide biosynthesis. Its nucleobase…”
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7
Synthesis of oligonucleotides containing 5′-homo-4′-selenouridine derivative and its increased resistance against nuclease
Published in Bioorganic & medicinal chemistry letters (01-03-2023)“…[Display omitted] As technologies using RNA or DNA have been developed, various chemical modifications of nucleosides have been attempted to increase the…”
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8
Chemical Approaches for RNAi Drug Development
Published in YAKUGAKU ZASSHI (01-10-2020)“…RNA interference (RNAi) is the standard method of suppressing gene expression because of its target specificity, potency, and ability to silence the expression…”
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Synthesis and Anti-dengue Virus Activity of 5-Ethynylimidazole-4-carboxamide (EICA) Nucleotide Prodrugs
Published in Chemical & pharmaceutical bulletin (01-03-2022)“…We previously showed that 5-ethynyl-(1-β-D-ribofuranosyl)imidazole-4-carboxamide (1; EICAR) is a potent anti-dengue virus (DENV) compound but is cytotoxic to…”
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10
Synthesis and Properties of 4'-ThioLNA/BNA
Published in Organic letters (21-05-2021)“…To develop a new nucleoside analogue applicable to oligonucleotide therapeutics, we designed a 4'-thio analogue of an LNA/BNA monomer. Synthesis of…”
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11
Cas9-mediated DNA cleavage guided by enzymatically prepared 4'-thio-modified RNA
Published in Organic & biomolecular chemistry (06-07-2022)“…CRISPR-Cas9-mediated DNA editing relies on guide RNAs (gRNAs) that direct site-specific DNA cleavage by the Cas endonuclease. Because natural gRNA is…”
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Synthesis and properties of fully-modified 4′-selenoRNA, an endonuclease-resistant RNA analog
Published in Bioorganic & medicinal chemistry (15-12-2022)“…[Display omitted] A large number of chemically modified oligonucleotides (ONs) have been developed for RNA-based technologies. In most modified RNAs, the…”
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13
First Synthesis of Fully Modified 4′-SelenoRNA and 2′-OMe-4′-selenoRNA Based on the Mechanistic Considerations of an Unexpected Strand Break
Published in Organic letters (19-09-2014)“…This study investigated oligonucleotide (ON) synthesis containing 4′-selenoribonucleoside(s) under standard phosphoramidite conditions. Careful operation using…”
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A practical post-modification synthesis of oligodeoxynucleotides containing 4,7-diaminoimidazo[5′,4′:4,5]pyrido[2,3-d]pyrimidine nucleoside
Published in Bioorganic & medicinal chemistry (15-12-2012)“…We describe herein the practical post-modification synthesis of oligodeoxynucleotides (ODNs) containing 4,7-diaminoimidazo[5′,4′:4,5]pyrido[2,3-d]pyrimidine…”
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15
Synthesis of 4'-Selenoribonucleosides, the Building Blocks of 4'-SelenoRNA, Using a Hypervalent Iodine
Published in Current protocols in nucleic acid chemistry (01-09-2017)“…Herein is described a detailed protocol for the synthesis of 4'-selenoribonucleoside derivatives that involves the use of a hypervalent iodine species. These…”
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Synthesis and biological evaluation of novel imidazole nucleosides as potential anti-dengue virus agents
Published in Bioorganic & medicinal chemistry (01-06-2019)“…[Display omitted] In this work, we developed imidazole nucleoside derivatives with anti-dengue virus (DENV) activity was examined. First, compounds in a…”
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Chemistry, Properties, and in Vitro and in Vivo Applications of 2′-O-Methoxyethyl-4′-thioRNA, a Novel Hybrid Type of Chemically Modified RNA
Published in Chembiochem : a European journal of chemical biology (24-11-2014)“…We report the synthesis, properties, and in vitro and in vivo applications of 2′‐O‐methoxyethyl‐4′‐thioRNA (MOE‐SRNA), a novel type of hybrid chemically…”
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18
The novel functional nucleic acid iRed effectively regulates target genes following cytoplasmic delivery by faint electric treatment
Published in Science and technology of advanced materials (01-01-2016)“…An intelligent shRNA expression device (iRed) contains the minimum essential components needed for shRNA production in cells, and could be a novel tool to…”
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Sofosbuvir Suppresses the Genome Replication of DENV1 in Human Hepatic Huh7 Cells
Published in International journal of molecular sciences (01-02-2024)“…Dengue virus (DENV) causes dengue fever and dengue hemorrhagic fever, and DENV infection kills 20,000 people annually worldwide. Therefore, the development of…”
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Synthesis and properties of oligonucleotides containing a 2,6-diamino-3-deazapurine:furanopyrimidine base pair
Published in Nucleosides, nucleotides & nucleic acids (03-10-2022)“…Furanopyrimidine (FPy) and 2,6-diamino-3-deazapurine (DC 3 Pu) nucleosides with the ability to interact in DDD and AAA H-bonding patterns, respectively, were…”
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