It is an object of the present invention to provide quenching or fluorescent nucleic acid base analogs and applications thereof. The quencher of the present invention has a 2-nitropyrrole structure represented by Formula I:
[Formula 1]
(in Formula I, R
1
and R
2
are groups independently selected from the group consisting of:
ribose and deoxyribose;
hydrogen, hydroxyl and SH groups, and halogens;
substituted or unsubstituted alkyl, alkenyl, and alkynyl groups each having 2 to 10 carbon atoms;
one or more five-membered heterocyclic rings, one or more six-membered heterocyclic rings, and one or more fused heterocyclic rings, these heterocylic rings containing nitrogen or sulfur, and one or more aromatic rings;
sugars, sugar chains, amino acids, and peptides; and
fluorescent molecules linked via linkers).
本发明的目的是提供熄灭或荧光核酸碱基类似物及其应用。本发明的熄灭剂具有由公式I表示的2-硝基
吡咯结构:[公式1](在公式I中,R1和R2是从以下组成的组中独立选择的基团:
核糖和脱氧
核糖;氢、羟基和SH基团以及卤素;取代或未取代的烷基、烯基和炔基基团,每个基团具有2至10个碳原子;一个或多个含氮或
硫的五元杂环、六元杂环和融合杂环,这些杂环中含有一个或多个芳香环;糖、糖链、
氨基酸和肽;以及通过连接基连接的荧光分子)。