The present invention relates to methods and kits for catalytic alkylation of nucleic acids, and more particularly to methods and kits for selectively modifying nucleic acids by a rhodium catalyst and a substrate in a biological or an artificial composition.
[EN] METHODS FOR CATALYTIC ALKYLATION OF NUCLEIC ACIDS<br/>[FR] PROCÉDÉS POUR L'ALKYLATION CATALYTIQUE D'ACIDES NUCLÉIQUES
申请人:UNIV BASEL
公开号:WO2014016202A1
公开(公告)日:2014-01-30
The present invention relates to catalysts, methods and kits for catalytic alkylation of nucleic acids, and more particularly to catalysts (X), methods and kits for selectively modifying nucleic acids in a biological or an artificial composition, wherein X is rhodium, copper, nickel, iron, or silver.
Cu(i)-catalysed N–H insertion in water: a new tool for chemical biology
作者:Kiril Tishinov、Na Fei、Dennis Gillingham
DOI:10.1039/c3sc51363g
日期:——
We demonstrate for the first time that Cu(I)-catalysis can deliver NâH insertion (NHI) with α-diazocarbonyl compounds in aqueous media. Despite being carried out in water only trace amounts of OâH insertion are seen, indicating the catalyst's overwhelming preference for NHI. Our optimized conditions for NHI converged with those used for the Cu-catalyzed azideâalkyne cycloaddition (CuAAC) for bioconjugation, spurring us to develop an auto-tandem catalytic process where both catalytic cycles operate simultaneously in one-pot. We explore the scope of the method with both small molecule and complex DNA and RNA substrates.
Structure-Selective Catalytic Alkylation of DNA and RNA
作者:Kiril Tishinov、Kristina Schmidt、Daniel Häussinger、Dennis G. Gillingham
DOI:10.1002/anie.201205201
日期:2012.11.26
Nuc 'em: A variety of nucleic acids can be catalytically alkylated with rhodium‐carbenoids generated from diazo compounds in aqueous buffer through an NH insertion process (see scheme; MES=2‐(N‐morpholino)ethanesulfonic acid). The method specifically targets unpaired bases such as those present in single strands, turn regions, and overhangs while leaving double‐stranded sequences untouched.
NUC“时间:多种核酸可与通过N从在含水缓冲液重氮化合物生成铑卡宾被催化烷基化 ħ插入处理(参见方案; MES = 2-(Ñ吗啉代)乙磺酸)。该方法专门针对未配对的碱基,例如单链,转折区域和突出端中存在的碱基,而双链序列则保持不变。