摘要:
The present invention is to provide a method for analyzing a target nucleic acid, by which the target nucleic acid can be analyzed rapidly and easily. In order to achieve the above object, the present invention provides a method for analyzing a target nucleic acid in a sample, including the step of: analyzing the target nucleic acid in the sample by bringing the sample into contact with a label and with a primer or probe that can hybridize to the target nucleic acid. The primer or probe is immobilized on a solid phase. The label does not emit light when the primer or probe does not hybridize to the target nucleic acid, whereas the label emits light when the primer or probe has hybridized to the target nucleic acid. The analysis is carried out by detecting the light emitted from the label.
摘要:
The present invention relates to a process for synthesizing or amplifying efficiently a nucleic acid comprising a target nucleic acid sequence. In the process according to the present invention, a primer comprising in its 3′-end portion a sequence (Ac′) which hybridizes a sequence (A) in the 3′-end portion of the target nucleic acid sequence, and in the 5′-side of said sequence (Ac′) a sequence (B′) which hybridizes the complementary sequence (Bc) of a sequence (B) positioned in the 5′-side of said sequence (A) on the target nucleic acid sequence, wherein {X−(Y−Y′)}/X is in the range of −1.00 to 1.00, in which X denotes the number of bases in said sequence (Ac′), Y denotes the number of bases in the region flanked by said sequences (A) and (B) in the target nucleic acid sequence, and Y′ denotes the number of bases in an intervening sequence between said sequences (Ac′) and (B′) (Y′ may be zero).
摘要:
The present invention provides methods for the sequencing of all RNA species within an RNA sample, such as the RNA content obtained from a cell, a tissue, a living organism, or from an artificial source. RNA molecules within the samples are labeled in a RNA-specific manner prior to immobilization on a solid support. One label is used to mark the location of the RNA molecule on the solid support, whereas the second label is used to mark selectively the S′ end of full-length mRNA molecules. RNA molecules are sequenced while being bound to the solid support in one or more sequencing reactions, and sequences of individual RNA molecules can be forwarded to computational analysis for assembling sequence information from individual sequencing reads obtained from the same location on the solid support. Not only unsupervised expression profiling on a genome-wide scale, but also the direct analysis of RNA-RNA interactions become possible as revealed by the analysis of the sequencing information obtained along with genomic information.
摘要:
The present invention provides a compound represented by the following chemical formula (I); a tautomer or stereoisomer of the compound; or a salt of the compound, the tautomer, or the stereoisomer. In the chemical formula (I), R1 and R2 are each a Group 1 element or a protecting group of an amino group and may be identical to or different from each other, or alternatively, R1 and R2 together may form a protecting group of an amino group. R3 is a Group 1 element or a protecting group of a hydroxy group. R4 is a Group 1 element or —PR5R6R7R8 (R5, R6, R7, and R8 are each a Group 1 element, a lone electron pair, a Group 16 element, a Group 17 element, or a protecting group of a phosphorus atom, and may be identical to or different from each other). J is a hydrogen atom or an arbitrary atomic group, A is a hydrogen atom, a hydroxy group, an alkyl group, an aralkyl group, an alkoxy group, an electron-withdrawing group, a silylene group, or a sulfide group, or alternatively, J and A together may form a linker. L is a single bond or a linker (a linking atom or a linking atomic group), the main chain length (the number of main chain atoms) of the linker is arbitrary, L may or may not contain each of C, N, O, S, P, and Si in the main chain, and may or may not contain each of a single bond, a double bond, a triple bond, an amide bond, an ester bond, a disulfide bond, an imino group, an ether bond, a thioether bond, and a thioester bond in the main chain. Z is an atomic group that can form a peptide bond with a labeling compound, or is an atom or atomic group including a label.
摘要:
The present invention provides a nucleic acid probe that can achieve high detection sensitivity and high specificity in mutation detection, mismatch detection, etc. by the PCR method, a method for designing such a nucleic acid probe, and a method for detecting a target sequence. The nucleic acid probe includes a nucleic acid molecule, and the nucleic acid molecule includes a plurality of fluorescent dye moieties that exhibit an excitonic effect. At least two of the fluorescent dye moieties that exhibit an excitonic effect are bound to the same base or two adjacent bases in the nucleic acid molecule with each fluorescent dye moiety being bound via a linker (a linking atom or a linking atomic group). The extension-side end of the nucleic acid molecule is chemically modified, thereby preventing an extension reaction of the nucleic acid molecule.
摘要:
The present invention is to provide a pretreatment method that allows RNA to be detected promptly and simply. RNA degradation activity due to lactoferrin present in the human rhinal mucosa is inhibited, for example, by adding iron ion and carbonate ion to a biological sample that contains the human rhinal mucosa. With the pretreated biological sample, an RNA virus gene can be amplified by a reverse transcriptase. Iron ion and carbonate ion can also inhibit reverse transcriptase inhibition due to lysozyme C contained in the human rhinal mucosa. Further, it is preferable to remove the envelope of the RNA virus by adding SDS to the biological sample that contains the human rhinal mucosa.
摘要:
A method is disclosed for the modification of an end of RNA molecules and the use of such modified RNA molecules in cDNA synthesis for the purpose of cloning, detection, sequencing, and amplification of parts of the RNAs, the entire RNAs, or any cDNAs derived from such modified RNAs. The invention relates further to the amplification and the identification of nucleic acid molecules for the purpose of single molecule detection and/or high-throughput sequencing. In addition, a method is provided for the preparation of pooled samples that contains molecules each of which is marked by an “Identifier Sequence” for its origin. The invention facilitates studies on biological systems and analysis of genes expressed therein.
摘要:
A DNA polymerase suitable for specific isothermal amplification methods and an isothermal amplification method using the DNA polymerase are provided. In the presence of a DNA polymerase including a protein described in the following item (a) or (b), an amplification reaction of a target nucleic acid sequence in a nucleic acid sample is carried out isothermally using a first primer shown in the following (X). By using the DNA polymerase, it becomes possible to carry out the amplification reaction using the primer within a shorter time than ever before. (a) a protein having an amino acid sequence represented by SEQ ID NO. 23 (b) a protein having an amino acid sequence represented by SEQ ID NO. 25 (X) a primer that contains, in a 3′ end portion, a sequence (Ac′) that hybridizes to a sequence (A) of a 3′ end portion of the target nucleic acid sequence and also contains, on a 5′ side of the sequence (Ac′), a sequence (B′) that hybridizes to a complementary sequence (Bc) to a sequence (B) present on a 5′ side with respect to the sequence (A) in the target nucleic acid sequence
摘要翻译:提供了适用于特定等温扩增方法的DNA聚合酶和使用DNA聚合酶的等温扩增方法。 在包含下述(a)或(b)中所述的蛋白质的DNA聚合酶的存在下,使用下述第一引物等温进行靶核酸序列的扩增反应 X)。 通过使用DNA聚合酶,可以在比以往更短的时间内使用引物进行扩增反应。 (a)具有SEQ ID NO:1所示的氨基酸序列的蛋白质。 23(b)具有SEQ ID NO:1所示的氨基酸序列的蛋白质。 25(X)引物,其在3'末端含有与目标核酸序列的3'端部分的序列(A)杂交的序列(Ac'),并且在5' 序列(Ac')侧,与靶序列(A)相对于存在于5'侧的序列(B)的互补序列(Bc)杂交的序列(B')
摘要:
A testing chip for detecting a target nucleic acid from a liquid sample which at least comprises a support, a sample introduction part provided on the support, and a test region wherein an amplification reagent for amplifying the target nucleic acid is immobilized in the inside or on the surface of the support.
摘要:
The invention provides a sequence specific method for amplifying nucleic acids. More particularly, the invention provides a method for amplifying nucleic acid sequences which enables such sequences to be detected with high precision, rapidity and high specificity as compared to conventional methods. The present invention also provides a simple method for cloning nucleic acids, particularly, a rapid and simple method for amplifying alternative splicing forms synthesized by an alternative splicing which is performed in a process of preparing a matured mRNA from a DNA.