Fluorescent dye composition and target labeled therewith
First Claim
Patent Images
1. A dye composition of the formula
R—
- Fluorescent Dyewherein R comprises a reactive group covalently linked to said Fluorescent Dye wherein said Fluorescent Dye comprises a combination of two or more members selected from;
a) unsaturated aliphatic groups comprising an alkene or alkyne;
b) unsaturated heterocyclic groups;
c) aromatic groups;
and wherein R provides a conjugated system or an electron delocalized system with said Fluorescent Dye and said composition optionally comprises a charged or polar R′
group and wherein said composition further comprises a reactive group Rx attached to either said fluorescent dye, said R group or said polar R′
group, wherein said reactive group Rx comprises sulfhydryl, hydroxyl, amine, isothiocyanate, isocyanate, monochlorotriazine, dichlorotriazine, mono- or di-halogen substituted pyridine, mono- or di-halogen substituted diazine, maleimide, aziridine, sulfonylhalide, acid halide, hydroxysuccinimide ester, hydroxysulfosuccinimide ester, imidoester, hydrazine, azidonitrophenyl, azide, 3-(2-pyridyl dithio)-proprionamide, glyoxal or aldehyde.
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Abstract
This invention provides for labeling reagents, labeled targets and processes for preparing labeling reagents. The labeling reagents can take the form of cyanine dyes, xanthene dyes, porphyrin dyes, coumarin dyes or composite dyes. These labeling reagents are useful for labeling probes or targets, including nucleic acids and proteins. These reagents can be usefully applied to protein and nucleic acid probe based assays. They are also applicable to real-time detection processes.
50 Citations
27 Claims
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1. A dye composition of the formula
R—- Fluorescent Dye
wherein R comprises a reactive group covalently linked to said Fluorescent Dye wherein said Fluorescent Dye comprises a combination of two or more members selected from; a) unsaturated aliphatic groups comprising an alkene or alkyne; b) unsaturated heterocyclic groups; c) aromatic groups; and wherein R provides a conjugated system or an electron delocalized system with said Fluorescent Dye and said composition optionally comprises a charged or polar R′
group and wherein said composition further comprises a reactive group Rx attached to either said fluorescent dye, said R group or said polar R′
group, wherein said reactive group Rx comprises sulfhydryl, hydroxyl, amine, isothiocyanate, isocyanate, monochlorotriazine, dichlorotriazine, mono- or di-halogen substituted pyridine, mono- or di-halogen substituted diazine, maleimide, aziridine, sulfonylhalide, acid halide, hydroxysuccinimide ester, hydroxysulfosuccinimide ester, imidoester, hydrazine, azidonitrophenyl, azide, 3-(2-pyridyl dithio)-proprionamide, glyoxal or aldehyde.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
an unsaturated aliphatic group (a) and an aromatic group (c);
oran unsaturated heterocyclic group (b) and an aromatic group (c).
- Fluorescent Dye
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9. The dye composition of claim 1, wherein said fluorescent dye comprises an anthracene, a xanthene, a cyanine, a porphyrin, a coumarin or a composite dye.
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10. The dye composition of claim 1, wherein said charged or polar R′
- group increases aqueous solubility of said composition.
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11. The dye composition of claim 1, further comprising a linker arm attaching said reactive group Rx to said fluorescent dye, said R group or said R′
- group.
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12. A dye composition of the formula
R—- Fluorescent Dye
wherein R comprises a reactive group covalently linked to said Fluorescent Dye wherein said Fluorescent Dye comprises a combination of two or more members selected from; a) unsaturated aliphatic groups; b) unsaturated heterocyclic groups; c) aromatic groups; and wherein R provides a conjugated system or an electron delocalized system with said Fluorescent Dye and wherein said reactive group R comprises an alkene group, an alkyne group, a halogenated compound or a metallo-organic compound, said R group having the ability to form a carbon-carbon linkage with a target.
- Fluorescent Dye
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13. A labeled target having the structure
[R]—- Dye target
wherein said Dye is a fluorescent dye, wherein R comprises a reactive group covalently linked to said Dye, and wherein R comprises two or more members selected from; a) unsaturated aliphatic groups; b) unsaturated heterocyclic groups; c) aromatic groups; wherein R provides a conjugated system or an electron delocalized system with said Dye, and wherein said target is covalently attached to said Dye or said R. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
an unsaturated aliphatic group (a) and an aromatic group (c);
oran unsaturated heterocyclic group (b) and an aromatic group (c).
- Dye target
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22. The labeled target of claim 13, wherein said fluorescent dye comprises an anthracene, a xanthene, a cyanine, a porphyrin, a coumarin or a composite dye.
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23. The labeled target of claim 13, further comprising a charged or polar R′
- group.
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24. The labeled target of claim 13, wherein said charged or polar R′
- group increases aqueous solubility of said composition.
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25. The labeled target of claim 23, further comprising a linker arm attaching said target to said fluorescent dye, said R group or said R′
- group.
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26. The labeled target of claim 13, wherein said target comprises a protein, a peptide, a nucleic acid, a nucleotide or a nucleotide analog, a receptor, a natural or synthetic drug, a synthetic oligomer, a synthetic polymer, a hormone, a lymphokine, a cytokine, a toxin, a ligand, an antigen, a hapten, an antibody, a carbohydrate, a sugar or an oligo- or polysaccharide.
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27. The labeled target of claim 26, wherein said ligand comprises biotin, iminobiotin, digoxygenin or fluorescein, and the dye comprises a fluorescent dye.
Specification