申请人:Molecular Probes, Inc.
公开号:US05436134A1
公开(公告)日:1995-07-25
The invention describes the preparation and use of fluorescent stains for nucleic acids derived from unsymmetrical cyanine dyes. In particular, the invention describes unsymmetrical cyanine dyes having a saturated or unsaturated cyclic substituent. The dyes of the invention possess superior fluorescent characteristics when complexed with nucleic acids, and have utility in any application which requires detection of nucleic acids. The presence of the cyclic substituent results in improved permeability in a wide range of living cells, resulting in improved detection of intracellular nucleic acids.
该发明描述了从非对称青铜染料衍生的核酸的荧光染料的制备和使用。具体而言,该发明描述了具有饱和或不饱和环状取代基的非对称青铜染料。该发明的染料在与核酸络合时具有优越的荧光特性,并在任何需要检测核酸的应用中具有实用性。环状取代基的存在导致在广泛范围的活细胞中提高了渗透性,从而改善了对细胞内核酸的检测。