The present invention discloses a sequencing library comprising a nucleotide sequence. The sequence comprises a linker sequence and two target sequences. Two ends of the linker sequence are respectively linked to the target sequences and the two target sequences are direct repeat sequences. The present invention further discloses preparation and use of the sequencing library. The present invention overcomes the high error rate problem of current DNA sequencing technologies, especially in a way of very low coverage bias, and can be used to detect low frequency mutations in different kinds of samples.

The present invention relates to a method for enrichment of target DNA with high GC content based on target sequence capture and multiple displacement amplification, as well as a kit suitable for this method. The present invention also relates to a method for constructing a sequencing library of target DNA with high GC content based on the enrichment method of the present invention.

The present invention relates to a method for enrichment of target DNA with high GC content based on target sequence capture and multiple displacement amplification, as well as a kit suitable for this method. The present invention also relates to a method for constructing a sequencing library of target DNA with high GC content based on the enrichment method of the present invention.

The present invention relates to: a single nanoparticle biosensor platform comprising a metal nanoparticle in which a biomolecule is immobilized between two metal nanoseeds, and a biosensor comprising same; a method for detecting mutations by using the biosensor; and a method for manufacturing a single nanoparticle biosensor platform, comprising a step of forming a metal nanoparticle in which a biomolecule is immobilized between two metal nanoseeds. The single nanoparticle biosensor platform according to the present invention enables high sensitivity and reliability detection of a target, and also enables direct identification of various mutations so as to enable the efficient diagnosis of mutations, thereby being widely usable in the biomedical diagnostic fields and the like.

The present invention relates to: a single nanoparticle biosensor platform comprising a metal nanoparticle in which a biomolecule is immobilized between two metal nanoseeds, and a biosensor comprising same; a method for detecting mutations by using the biosensor; and a method for manufacturing a single nanoparticle biosensor platform, comprising a step of forming a metal nanoparticle in which a biomolecule is immobilized between two metal nanoseeds. The single nanoparticle biosensor platform according to the present invention enables high sensitivity and reliability detection of a target, and also enables direct identification of various mutations so as to enable the efficient diagnosis of mutations, thereby being widely usable in the biomedical diagnostic fields and the like.

Provided are methods for identification of DNA repair locations in a genome of a non-dividing cell, by incorporating a reactive nucleoside analogs into the genome of the non-dividing cell, then sequencing the regions of the genome that incorporated the nucleoside analog.

Provided are methods for identification of DNA repair locations in a genome of a non-dividing cell, by incorporating a reactive nucleoside analogs into the genome of the non-dividing cell, then sequencing the regions of the genome that incorporated the nucleoside analog.

The present invention relates to a method of detecting and quantifying biomolecules using nucleic acid polymerase activity controlled by the target molecule, and more particularly to a method for detecting or quantifying biomolecules, which can detect and quantify nucleic acids, proteins, small-molecular substances, physiologically active substances (enzymatic activities), etc., with high sensitivity, based on the change in DNA polymerase activity caused by specific binding of a specific nucleic acid that forms a complex with a DNA aptamer prepared so as to comprise a single-stranded DNA that specifically recognizes the specific nucleic acid. The present invention can provide a method for diagnosing biomolecules, which can detect and quantify target nucleic acids, target proteins, target small-molecular substances, target enzyme activities and the like in a label-free and sensitive manner by controlling polymerase activity through target molecule-induced conformational change of a DNA aptamer.

The present invention relates to a method of detecting and quantifying biomolecules using nucleic acid polymerase activity controlled by the target molecule, and more particularly to a method for detecting or quantifying biomolecules, which can detect and quantify nucleic acids, proteins, small-molecular substances, physiologically active substances (enzymatic activities), etc., with high sensitivity, based on the change in DNA polymerase activity caused by specific binding of a specific nucleic acid that forms a complex with a DNA aptamer prepared so as to comprise a single-stranded DNA that specifically recognizes the specific nucleic acid. The present invention can provide a method for diagnosing biomolecules, which can detect and quantify target nucleic acids, target proteins, target small-molecular substances, target enzyme activities and the like in a label-free and sensitive manner by controlling polymerase activity through target molecule-induced conformational change of a DNA aptamer.

The invention pertains to methods for measuring DNA repair capacity of a test solution, for example, a cell lysate. The method can comprise incubating the test solution with a damaged DNA molecule and measuring the damaged DNA remaining at the end of the incubation. The damaged DNA used in the method comprises a marker attached to a first strand of the damaged DNA and a quencher attached to a second strand of the damaged DNA, characterized in that the quencher inhibits the release of a detectable signal from the marker when damaged DNA is in a double stranded form and the marker emits the detectable signal when at least a portion of the damaged DNA is in a single stranded form. The invention also provides screening assays for identifying one or more compounds from a plurality of compounds as an inhibitor of DNA repair mechanism.