Fluorescent and DNA cleavage properties of peptide/dye conjugates
First Claim
1. A method of identifying the presence or absence of a DNA molecule that contains a specific DNA sequence, comprising the steps of:
- (a) mixing a test sample with a peptide/dye conjugate comprising a covalently linked peptide and a dye, wherein the peptide binds to the specific DNA sequence and wherein the peptide/ dye conjugate will fluoresce only if the peptide is bound to the specific DNA sequence; and
(b) measuring fluorescence, wherein specific fluorescence above background level indicates that the conjugate is bound to the specific DNA sequence.
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Abstract
A method of identifying the presence or absence of a DNA molecule in a test sample comprising a specific DNA sequence is disclosed. In one embodiment, the method comprises the steps of mixing a test sample with a peptide/dye conjugate comprising a covalently linked peptide and a dye, wherein the peptide binds to the specific DNA sequence and wherein the peptide/dye conjugate will fluoresce if the peptide is bound to the specific DNA sequence, and measuring fluorescence, wherein specific fluorescence above background level indicates that the conjugate is bound to the specific DNA sequence. In another embodiment, the present invention is a method of cleaving a specific DNA molecule and a test sample. The method comprises mixing a test sample with a peptide dye conjugate comprising a covalently linked peptide and a dye, wherein the peptide binds to the specific DNA sequence and wherein the peptide dye conjugate will cleave if the peptide is bound to a specific DNA sequence.
13 Citations
26 Claims
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1. A method of identifying the presence or absence of a DNA molecule that contains a specific DNA sequence, comprising the steps of:
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(a) mixing a test sample with a peptide/dye conjugate comprising a covalently linked peptide and a dye, wherein the peptide binds to the specific DNA sequence and wherein the peptide/ dye conjugate will fluoresce only if the peptide is bound to the specific DNA sequence; and
(b) measuring fluorescence, wherein specific fluorescence above background level indicates that the conjugate is bound to the specific DNA sequence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A peptide/dye conjugate comprising:
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(a) a peptide that binds to a specific DNA sequence; and
(b) a dye capable of fluorescence only when the conjugate is bound to a specific DNA sequence, wherein the dye is covalently linked to the peptide. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification