Provided herein is technology relating to nanopore analysis of nucleic acids and particularly, but not exclusively, to compositions, methods, systems, and kits for analysis of nucleic acids or other assays comprising nucleic acid components.

A method is presented that enables the spatial mapping of nucleic acids of tissue samples with high resolution and without sacrificing the degree of multiplexing that is available from next-generation sequencing. The method is based on the application of patterns of barcoded oligonucleotides probes onto predefined locations in a region of interest in a tissue sample. Every nucleic acid analyzed can be allocated to a certain position inside the sample based on the barcode. Various printing technologies can be used and different ways of patterning can be employed, like a regular array with a certain pitch or alternatively an object-based patterning with defined regions of interest without shape constraints.

A method for detecting a genetic mutation is provided. The method comprising: carrying out PCR using a template DNA, a forward primer, a reverse primer and a wild-type oligonucleotide; and detecting an amplified DNA. In the method, the wild-type oligonucleotide comprises LNA or BNA, and on a DNA strand of the template, with which the wild-type oligonucleotide is hybridized, a region with which the wild-type oligonucleotide is a hybridized and a region with which the forward primer or the reverse primer is hybridized partially overlap each other, or the regions are separated from each other by 1 to 18 bases.

A method of producing a replicate or derivative of an array of molecules, the array having a spatial arrangement of separate samples of molecules, includes creating, for each sample, at least one spatially limited effective area which is separate from the effective areas of the other samples, a surface, provided with a binding adapter or binding properties, of a carrier bordering on the effective areas. The molecules are amplified by means of amplifying agents in the effective areas for creating replicates or derivatives of the samples. The replicates or derivatives of the samples are bound to the carrier by means of the binding adapter or the binding properties, so that a spatial arrangement of the replicates or derivatives of the samples on the carrier corresponds to the spatial arrangement of the samples in the array. The carrier having the copies of the samples is removed from the array.

Disclosed herein, inter alia, are compounds, compositions, and methods of use thereof for sequencing a nucleic acid.

Disclosed herein, inter alia, are compounds, compositions, and methods of use thereof for sequencing a nucleic acid.