Labeling reagents and labeled targets, target labeling processes and other processes for using same in nucleic acid determinations and analyses
First Claim
1. A labeling reagent for labeling a target, said labeling reagent comprising a marker moiety M and a reactive group R
M-Rwherein said marker moiety M and said reactive group R are covalently linked together by a linker arm comprising a backbone which comprises one or more carbon atoms, wherein said backbone further comprises one or more peptide bonds, said M comprising at least one moiety that comprises a ligand, a dye, or both a ligand and a dye;
- and wherein said target is labeled by forming a carbon-carbon bond between a carbon atom in said target and a carbon atom in said labeling reagent by means of said reactive group R.
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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.
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Citations
20 Claims
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1. A labeling reagent for labeling a target, said labeling reagent comprising a marker moiety M and a reactive group R
M-Rwherein said marker moiety M and said reactive group R are covalently linked together by a linker arm comprising a backbone which comprises one or more carbon atoms, wherein said backbone further comprises one or more peptide bonds, said M comprising at least one moiety that comprises a ligand, a dye, or both a ligand and a dye; - and wherein said target is labeled by forming a carbon-carbon bond between a carbon atom in said target and a carbon atom in said labeling reagent by means of said reactive group R.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A process for labeling a target, said process comprising the steps of:
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(a) providing; (i) said target; and (ii) a labeling reagent for labeling a target, said labeling reagent comprising a marker moiety M and a reactive group R
M-Rwherein said marker moiety M and said reactive group R are covalently linked together by a linker arm comprising a backbone which comprises one or more carbon atoms comprising one or more peptide bonds, said M comprising at least one moiety that comprises a ligand, a dye, or both a ligand and a dye; and
said reactive group R forming a carbon-carbon linkage with said target under appropriate conditions; and(b) reacting said target (i) and said labeling reagent (ii) under conditions such that a carbon-carbon linkage forms between said target (i) and said labeling reagent (ii), thereby labeling said target (i) with said marker moiety M. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification