摘要:
Protective groups which may be cleaved with an activatable deprotecting reagents are employed to achieve a highly sensitive, high resolution, combinatorial synthesis of pattern arrays of diverse polymers. In preferred embodiments of the instant invention, the activatable deprotecting reagent is a photoacid generator and the protective groups are DMT for nucleic acids and tBOC for amino acids. This invention has a wide variety of applications and is particularly useful for the solid phase combinatorial synthesis of polymers.
摘要:
The present invention provides massively parallel oligonucleotide synthesis and purification for applications that utilize large collections of defined high-fidelity oligonucleotides (e.g., from about 101 to about 105 different sequences, generally between 25-160 bases in length).
摘要:
The present invention provides massively parallel oligonucleotide synthesis and purification for applications that utilize large collections of defined high-fidelity oligonucleotides (e.g., from about 101 to about 105 different sequences, generally between 25-160 bases in length).
摘要:
The invention relates to novel chimeric phosphoramidate oligonucleotides and their use in primer-extension methods such as DNA sequencing and nucleic acid amplification. The subject chimeric phosphoramidate oligonucleotides have both N3'-phosphoramidate linkages and phosphodiester linkages. The invention includes methods of primer extension using the subject chimeric oligonucleotides as primers. Primer extension methods of interest include nucleic acid amplification reactions, e.g. PCR, and polynucleotide sequencing reactions. In the primer extension methods of the invention, a chimeric phosphoramidate oligonucleotide primer is annealed to a polynucleotide template. After annealing, the chimeric oligonucleotide primer is extended by joining a nucleotide to the 3' end of the primer by a DNA polymerase catalyzed reaction. Other embodiments of the invention include methods of primer extension using phosphoramidate linkage containing polynucleotide templates. Such methods include annealing an oligonucleotide primer (chimeric or otherwise) to a polynucleotide template comprising at least one phosphoramidate linkage. Nucleotides are added to the primer in a DNA polymerase catalyzed reaction. Primer extension takes place across one or more of the phosphoramidate linkages in the template. The invention includes compositions comprising a chimeric phosphoramidate oligo-nucleotide of the invention and a divalent cation. Divalent cations serve to increase the binding affinity between the chimeric oligonucleotides of the invention and a polynucleotide template. Additionally, divalent cations may be used to stabilize the phosphoramidate linkages of the subject chimeric oligonucleotides against hydrolysis at elevated temperatures, such as the temperatures used in PCR and cycle sequencing. The subject compositions may further comprise a thermostable DNA polymerase such as Taq DNA polymerase.
摘要:
Disclosed are compositions and methods for the labeling of two or more targets with different labels. Specifically, disclosed are compositions for biotin and the protection of biotin within multilabel assays which employ the biotin-biotin binding protein binding relationship for each distinct label in relation to targets such as nucleic acids, polypeptides, antibodies or cells. These multilabel assays are enabled through the use of biotin with desthiobiotin, orthogonal protecting schemes for biotin, or a combination of the approaches.
摘要:
The present invention provides massively parallel oligonucleotide synthesis and purification for applications that utilize large collections of defined high-fidelity oligonucleotides (e.g., from about 101 to about 105 different sequences, generally between 25-160 bases in length).
摘要:
Protective groups which may be cleaved with an activatable deprotecting reagents are employed to achieve a highly sensitive, high resolution, combinatorial synthesis of pattern arrays of diverse polymers. In preferred embodiments of the instant invention, the activatable deprotecting reagent is a photoacid generator and the protective groups are DMT for nucleic acids and tBOC for amino acids. This invention has a wide variety of applications and is particularly useful for the solid phase combinatorial synthesis of polymers.
摘要:
The present invention provides massively parallel oligonucleotide synthesis and purification for applications that utilize large collections of defined high-fidelity oligonucleotides (e.g., from about 101 to about 105 different sequences, generally between 25-160 bases in length).
摘要:
The present invention provides massively parallel oligonucleotide synthesis and purification for applications that utilize large collections of defined high-fidelity oligonucleotides (e.g., from about 101 to about 105 different sequences, generally between 25-160 bases in length).