Patent ID: 10150960

Abstract:
Provided herein is a method for enriching a target nucleic acid molecule. In one embodiment, the method may involve hybridizing a C-probe to a strand of a target nucleic acid to produce a complex, enzymatically removing any 3′ overhanging end from the target nucleic acid of the complex to produce a 3′ hydroxyl group at the 3′ end; extending the 3′ end of the first sequence using the oligonucleotide sequence of the C-probe as a template; enzymatically removing any 5′ overhanging end from the target nucleic acid, either before or after the extending step, to produce an 5′ phosphate group at the end of the second sequence; and ligating the 5′ phosphate group at the end of the second sequence to the 3′ hydroxyl group at the end of the first sequence to produce a circular DNA molecule that contains the target sequence and the complement of the oligonucleotide sequence.