Methods For Labeling Dna Ends With Halogenated Nucleotides And Detecting Same With Antibodies


Ontology type: sgo:Patent     


Patent Info

DATE

1997-03-06T00:00

AUTHORS

DARZYNKIEWICZ, ZBIGNIEW , LI, XUN , TRAGANOS, FRANK

ABSTRACT

The invention pertains to the field of DNA detection for basic research, medical diagnostic testing, and forensic testing. Methods are provided for the end labeling of DNA strands. The DNA strands are first incubated with a halogenated deoxynucleotide triphosphate, such as brominated deoxyuridine triphosphate (BrdUTP), and an enzyme which can catalyze the addition of the halogenated deoxynucleotide to the 3'OH ends of the DNA strand, such as terminal deoxynucleotide transferase (TdT). The resulting modified DNA strands are then incubated with a labeled antibody, such as a fluoresceinated monoclonal antibody, that specifically binds to the halogenated deoxynucleotide. The label is then detected, e.g., by flow cytometry. The methods have utility in detecting apoptosis, in detecting DNA synthesis and/or repair, and as general methods for end labeling of DNA. More... »

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