Yoshihide Hayashizaki
Yoshihide Hayashizaki, Ibaraki-Ken JP
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20110059868 | PROCESS FOR AMPLIFYING NUCLEIC ACIDS - 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). | 03-10-2011 |
Yoshihide Hayashizaki, Yokohama-Shi JP
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20080227104 | Primer, primer set, and nucleic acid amplification method and mutation detection method using the same - The present invention provides a primer that effectively can detect, for example, the double helix structure of a nucleic acid. The primer is a labeled nucleic acid containing at least one structure represented by the following formula (16), | 09-18-2008 |
20100035249 | RNA SEQUENCING AND ANALYSIS USING SOLID SUPPORT - 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. | 02-11-2010 |
20100040578 | Malignant Tumor Cell Suppressor Protein, Malignant Tumor Cell Suppressor Gene, Maligant Tumor Cell Suppressive Viral Vector, and Kit Using the Same - A malignant tumor cell suppressor protein (a) or (b): | 02-18-2010 |
20100221787 | ISOTHERMAL AMPLIFICATION METHOD AND DNA POLYMERASE USED IN THE SAME - 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. | 09-02-2010 |
20110059869 | Method for Increasing Enzymatic Reactivity - An object of the invention is to provide a method for increasing enzymatic reactivity to a target substance immobilized on a support; and a method for reducing or suppressing an inhibitory effect of a support on enzymatic reaction. The above object is achieved by a method for increasing enzymatic reactivity to a target substance immobilized on a support by allowing at least one substance selected from the group consisting of saccharides, amino acids, polyhydric alcohols and derivatives thereof to exist; and a method for reducing or suppressing an inhibitory effect of a support immobilized with a target substance on enzymatic reactivity to the target substance by allowing at least one substance selected from the group consisting of saccharides, amino acids, polyhydric alcohols and derivatives thereof to exist. | 03-10-2011 |
20110236900 | NOVEL MUTS PROTEIN AND METHOD FOR DETERMING MUTATION USING THE SAME - A method for determining the presence or absence of a mutation on the basis of the presence or absence of amplification with high reliability is provided. A target sequence including a target site contained in a sample nucleic acid is amplified using a primer that can hybridize to a region including the target site contained in the sample nucleic acid in the presence of a novel MutS having an amino acid sequence of SEQ ID NO: 2, and then the presence or absence of a mutation at the target site is determined on the basis of the presence or absence of amplification. The novel MutS binds more specifically to a mismatched base pair than to a fully-matched base pair, whereby an extension reaction caused by a mismatch-binding primer is suppressed. Thus, according to the present invention, the presence or absence of a mutation can be determined with high reliability. | 09-29-2011 |
20130302783 | PRETREATMENT METHOD OF BIOLOGICAL SAMPLE, DETECTION METHOD OF RNA, AND PRETREATMENT KIT - 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. | 11-14-2013 |
Yoshihide Hayashizaki, Saitama JP
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20100047862 | Novel DNA Polymerase - This invention provides a novel DNA polymerase obtained from | 02-25-2010 |
Yoshihide Hayashizaki, Ibaraki JP
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20080293043 | Method of Detecting Metastisizing Cancer Cells Originating in Stomach Cancer - Metastatic cancer cells originating from gastric cancer are detected by a method comprising the step of collecting a biological sample from a subject, the step of detecting the presence of at least either aldehyde dehydrogenase or dopa decarboxylase in the biological sample of the subject, and the step of determining that the possibility of containing metastatic cancer cells originating from the gastric cancer in the sample is high when at least either aldehyde dehydrogenase or dopa decarboxylase is present. By the use of these as markers for metastatic cancer cells originating from gastric cancer, the presence or absence of peritoneal metastasis in a gastric cancer patient can be detected rapidly and reliably, and data important for deciding whether intraperitoneal cancer chemotherapy should be applied is provided. | 11-27-2008 |
20090042197 | METHOD FOR DETECTING AND AMPLIFYING NUCLEIC ACID - Problem to be Solved There is provided a method for detecting and/or amplifying a nucleic acid contained in a biological sample such as blood or cells conveniently, rapidly, and effectively. | 02-12-2009 |
Yoshihide Hayashizaki, Tokyo JP
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20110243910 | MAMMALIAN RNA DEPENDENT RNA POLYMERASE - The invention provides compositions comprising a TERT-RMRP or TERT-RNA complex and methods of treating subjects with genetic diseases in which gene silencing is either increased by administering the compositions of the invention or decreased by administering an inhibitor of the RNA-dependent RNA polymerase (RdRP) activity of these compositions. Moreover, the invention provides methods of screening for agonists and antagonists of RdRP activity and TERT-RMRP complex formation. Finally, the invention provides a method of identifying a RNA molecule that forms a complex with a TERT polypeptide and has RdRP activity. | 10-06-2011 |
Yoshihide Hayashizaki, Tsukuba-Shi JP
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20120028313 | OLIGONUCLEOTIDE LINKERS COMPRISING A VARIABLE COHESIVE PORTION AND METHOD FOR THE PREPARATION OF POLYNUCLEOTIDE LIBRARIES BY USING SAID LINKERS - The present invention relates to a linker or population of linkers that include an oligonucleotide fixed portion and an oligonucleotide variable portion represented by formula (N)n, wherein N is A, C, G, T or U, or their derivatives, and n is an integer equal to or higher than 1. A linker-polynucleotide or a population of linker-polynucleotides of the invention may be constituted by said linker or population of linkers and a target first strand polynucleotide bound to said linker. The invention also encompasses a method of preparing said linker or population of linkers and a method of preparing a linker-polynucleotide using said linker or population of linkers. The linkers or polynucleotide-linkers of the invention can be used in a method of preparing a cDNA library. | 02-02-2012 |
Yoshihide Hayashizaki, Wako-Shi JP
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20140295447 | PRIMER SET, METHOD FOR AMPLIFYING TARGET NUCLEIC ACID SEQUENCE USING SAME, AND METHOD FOR DETECTING MUTATED NUCLEIC ACID USING SAME - The present invention provides a primer set including primers that can be designed easily, with which an amplification distance can be shortened. Provided is a primer set for use in a method for isothermally amplifying a target nucleic acid sequence 4. The primer set includes a first primer 1F and a second primer 1R. The first primer 1F includes, on the 3′ side thereof, a sequence (A′) that can hybridize to a sequence (A) on the 3′ side of the target nucleic acid sequence. The second primer 1R includes, on the 3′ side thereof, a sequence (B′) that can hybridize to a sequence (B) on the 3′ side of either a strand extended from the first primer or a complementary strand of the target nucleic acid sequence 4. The first primer 1F and the second primer 1R include, on the 5′ sides thereof, sequences (C) that are substantially identical to each other. | 10-02-2014 |