摘要:
The present invention concerns preparation of DNA molecules, such as a library, using a stem-loop oligonucleotide. In particular embodiments, the invention employs a single reaction mixture and conditions. In particular, at least part of the inverted palindrome is removed during the preparation of the molecules to facilitate amplification of the molecules. Thus, in specific embodiments, the DNA molecules are suitable for amplification and are not hindered by the presence of the palindrome.
摘要:
The present invention concerns preparation of DNA molecules, such as a library, using a stem-loop oligonucleotide. In particular embodiments, the invention employs a single reaction mixture and conditions. In particular, at least part of the inverted palindrome is removed during the preparation of the molecules to facilitate amplification of the molecules. Thus, in specific embodiments, the DNA molecules are suitable for amplification and are not hindered by the presence of the palindrome.
摘要:
The present invention concerns isolation, library preparation and selective amplification from a compositionally heterogeneous pool of DNA fragments of a fraction of molecules, such as those originating from promoter CpG islands and characterized by a high GC content. In particular, the process utilizes a heat-induced segregation of DNA molecules into GC-poor, single-stranded molecule fractions and GC-rich, double-stranded molecule fractions, with subsequent enzymatic conversion of the GC-rich, double-stranded DNA molecules into a library, and, optionally, amplification. In specific embodiments, the isolation process is used to generate promoter-enriched genomic and methylome libraries for research and diagnostic applications, for example.
摘要:
The present invention concerns preparation of DNA molecules, such as a library, using a stem-loop oligonucleotide. In particular embodiments, the invention employs a single reaction mixture and conditions. In particular, at least part of the inverted palindrome is removed during the preparation of the molecules to facilitate amplification of the molecules. Thus, in specific embodiments, the DNA molecules are suitable for amplification and are not hindered by the presence of the palindrome.
摘要:
The present invention concerns preparation of DNA molecules, such as a library, using a stem-loop oligonucleotide. In particular embodiments, the invention employs a single reaction mixture and conditions. In particular, at least part of the inverted palindrome is removed during the preparation of the molecules to facilitate amplification of the molecules. Thus, in specific embodiments, the DNA molecules are suitable for amplification and are not hindered by the presence of the palindrome.
摘要:
The present invention regards a variety of methods and compositions for obtaining epigenetic information, such as DNA methylation patterns, through the preparation, amplification and analysis of Methylome libraries. In particular, the method employs preparation of a DNA molecule by digesting the DNA molecule with at least one methylation-sensitive restriction enzyme; incorporating a nucleic acid molecule into at least some of the digested DNA molecules by either (1) incorporating at least one primer from a plurality of primers that have a 5′ constant sequence and a 3′ variable sequence, wherein the primers are substantially non-self-complementary and substantially non-complementary to other primers in the plurality; or (2) incorporating an oligonucleotide having an inverted repeat and a loop under conditions wherein the oligonucleotide becomes blunt-end ligated to one strand of the digested DNA molecule, followed by polymerization from a 3′ hydroxyl group present in a nick in the oligonucleotide-linked molecule; and amplifying one or more of the DNA molecules.
摘要:
The present invention concerns preparation of DNA molecules, such as a library, using a stem-loop oligonucleotide. In particular embodiments, the invention employs a single reaction mixture and conditions. In particular, at least part of the inverted palindrome is removed during the preparation of the molecules to facilitate amplification of the molecules. Thus, in specific embodiments, the DNA molecules are suitable for amplification and are not hindered by the presence of the palindrome.
摘要:
The present invention concerns preparation of DNA molecules, such as a library, using a stem-loop oligonucleotide. In particular embodiments, the invention employs a single reaction mixture and conditions. In particular, at least part of the inverted palindrome is removed during the preparation of the molecules to facilitate amplification of the molecules. Thus, in specific embodiments, the DNA molecules are suitable for amplification and are not hindered by the presence of the palindrome.
摘要:
The present invention regards a variety of methods and compositions for whole genome amplification and whole transcriptome amplification. In a particular aspect of the present invention, there is a method of amplifying a genome comprising a library generation step followed by a library amplification step. In specific embodiments, the library generating step utilizes specific primer mixtures and a DNA polymerase, wherein the specific primer mixtures are designed to eliminate ability to self-hybridize and/or hybridize to other primers within a mixture but efficiently and frequently prime nucleic acid templates.
摘要:
The present invention regards a variety of methods and compositions for whole genome amplification and whole transcriptome amplification. In a particular aspect of the present invention, there is a method of amplifying a genome comprising a library generation step followed by a library amplification step. In specific embodiments, the library generating step utilizes specific primer mixtures and a DNA polymerase, wherein the specific primer mixtures are designed to eliminate ability to self-hybridize and/or hybridize to other primers within a mixture but efficiently and frequently prime nucleic acid templates.