WO2005075657A1 - Dna配列の塩基変換方法 - Google Patents
Dna配列の塩基変換方法 Download PDFInfo
- Publication number
- WO2005075657A1 WO2005075657A1 PCT/JP2005/001991 JP2005001991W WO2005075657A1 WO 2005075657 A1 WO2005075657 A1 WO 2005075657A1 JP 2005001991 W JP2005001991 W JP 2005001991W WO 2005075657 A1 WO2005075657 A1 WO 2005075657A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stranded
- sequence
- gene
- bases
- dna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/10—Processes for the isolation, preparation or purification of DNA or RNA
- C12N15/102—Mutagenizing nucleic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/87—Introduction of foreign genetic material using processes not otherwise provided for, e.g. co-transformation
Definitions
- the invention of this application relates to a method for base conversion of a DNA sequence. More specifically, the invention of this application relates to a method for converting one or more bases or base sequences of a target DNA sequence in a cell into another base or base sequence.
- SFHR Small Fragment Homologous Replacement
- the SFHR method holds great promise as a new form of gene therapy.
- the efficiency of repairing mutant genes in the SFH method varies greatly depending on the Atssei system and target gene used, but in many cases it is less than 1%, and this value should be dramatically improved.
- it is essential to make the SFHR method a clinically applicable technology.
- Reference 5 Colosiio A, Goncz KK, Novel li G, Dallapiccola B and GruenertDC. Targeted correction of a defective selectable marker gene in human epithelial cells by small DNA fragments.Mol Ther. 2001; 3: 178-185.
- Literature 8 Liu L, Rice MC, Drury M, Cheng S, Gamper H and Kmiec EB. Strand bias in tageted gene repair is influenced by transcriptional activity. Mol Cell Biol. 2002; 22: 3852-3863.
- Reference 1 O Brachman EE and Kmiec EB.targeted nucleotide repair of cycl mutat ions in Saccharoiyces cerevis iae directed by modified single-stranded nucleot ides.Genetics. 2003; 163: 527-538.
- Literature 1 2 Alexeev V, Igoucheva 0 and Yoon K. Simul taneous targeted alteration of the tyrosinase and c-kit genes by single-stranded oligonucleotides.Gene Ther. 2002; 9: 1667-1675.
- Reference 13 Pierce EA, Liu Q, Igoucheva 0, Omarrudin R, Ma H, Diamond SL and Yoon Oligonucleotide—directed single base DNA alterations in mouse embryonic stem cells. Gene Ther. 2003; 10: 24-33.
- Reference 14 Parekh-Olmedo H, Drury M and Kmiec EB. Targeted nucleotide exchange in Saccharomyces cerevisiae directed by short oligonucleotides containing locked nucleic acids. Chem Biol. 2002; 9: 1073-1084.
- This application is directed to a first invention for solving the above-mentioned problem, which is a method for converting one or more bases of a target DNA sequence in a cell, wherein the method is homologous to the target DNA sequence, and
- This is a method for base conversion of a DNA sequence, which comprises introducing into a cell a 300-3,000 base single-stranded DM fragment prepared from a single-stranded cyclic DM containing a base to be converted.
- the single-stranded DM fragment is homologous to the sense strand of the target DNA sequence.
- the single-stranded circular DNA is a phagemid DNA, and a target D sequence causing a disease by one or more base mutations. Is a base conversion.
- Yet another embodiment of the first invention is to convert one or more bases of a target DM sequence of a cell in an organism.
- the second invention of this application is a cell in which one or more bases of a target DNA sequence have been converted by the method of the first invention.
- the third invention of this application is a living individual having the cells of the second invention in the body.
- the fourth invention of this application is an agent for treating a disease caused by one or more base mutations in a target DM sequence, the agent being complementary to the target DM sequence and being converted. It is a therapeutic agent having a form in which a single-stranded DNA fragment of 300 to 3,000 bases prepared from single-stranded cyclic DM containing a base to be introduced can be introduced into cells.
- One embodiment of the fourth invention is that the single-stranded circular DNA is a phagemid DNA.
- the fifth invention of this application is based on one or more base mutations in the target DNA sequence.
- a method for treating a disease comprising preparing a single-stranded circular DNA comprising 300 to 3,000 bases, which is complementary to a target DNA sequence and contains bases to be converted.
- a therapeutic method characterized by introducing a fragment into a cell.
- the single-stranded cyclic DA is phagemid DNA.
- the “DNA sequence” means a molecule in which a nucleoside phosphate (dATP, dGTP, dCTP, dTTP) in which a purine or pyrimidine is linked to a sugar by a] 3- ⁇ -glycoside bond.
- dATP nucleoside phosphate
- dGTP nucleoside phosphate
- dCTP dCTP
- dTTP nucleoside phosphate
- “Conversion” means that one or more bases (A, T, G) in the target DNA sequence are replaced with other bases (base substitution), and one or more bases in the target DNA sequence are missing. Loss (base deletion) and the addition of one or more bases to the target DNA sequence (base addition). Furthermore, these base conversions may be performed on one or more bases independently of the target DM sequence, or may be performed by substitution, deletion and addition of a sequence consisting of a plurality of bases in the target sequence. (Sequence replacement, sequence deletion, sequence addition: these may be referred to as “sequence conversion” below).
- the terms in the present invention are basically based on the IUPAC-IUB Commission on Biochemical Nomenclature, or are based on the meanings of terms commonly used in the art.
- a target for gene repair Since the strand DM fragment is prepared from a single-stranded circular DNA having no complementary strand, there is no need to perform the operation of separating the target single-stranded DNA fragment from the complementary strand, and moreover, compared to the conventional SFH method, The base or base sequence of the target DNA sequence can be accurately converted with high efficiency. In particular, by using a single-stranded DNA fragment homologous to the sense strand of the target DNA sequence, the target base of the target gene can be efficiently and accurately converted.
- FIG. 1A is a configuration diagram of target plasmids pTENHES and pTE HEX into which normal and mutant HygEGFP genes have been respectively incorporated.
- FIG. 1B is a configuration diagram of phagemid vectors pBSHES / AntiSense and pBSHES / Sense for producing single-stranded antisense DNA fragments and sense DNA fragments.
- FIG. 2 is a photomicrograph of the fluorescence signal observed when the target plasmid pTENHEX and the single-stranded sense DNA fragment were introduced into mammalian cells (CH0-K1 cells).
- the mutant HygEGFP gene is repaired by the single-stranded DNA fragment, and the EFGP gene is expressed to generate a fluorescent signal.
- Figure 3 shows plasmids recovered from mammalian cells (CH0-K1 cells) transfected with target plasmid pTENHEX, single-stranded DNA fragments (iAntiS, fSense), double-stranded DNA fragments (dsHES) and PCR products (pcrHES).
- iAntiS single-stranded DNA fragments
- dsHES double-stranded DNA fragments
- pcrHES PCR products
- FIG. 4 is a graph showing gene repair efficiencies at the respective cell transduction amounts of dsHES, fAntiS, fSense, and pcrHES.
- FIG. 5 shows the results of electrophoresis of a restriction enzyme PmaCI fragment of a PCR product amplified from a target plasmid extracted from EGFP-positive cells.
- FIG. 6 is a diagram showing the results of sequence analysis of a target plasmid extracted from EGFP-positive cells. BEST MODE FOR CARRYING OUT THE INVENTION
- a single-stranded DNA fragment of 300 to 3,000 bases, which is homologous to the target DNA sequence and contains a base to be converted, prepared from a single-stranded cyclic DN is introduced into a cell.
- one or more bases of the target DNA sequence are converted. That is, in this method, the target DNA sequence or a partial region thereof is subjected to “homologous replacement” with a single-stranded DNA fragment, thereby obtaining a base or base sequence to be converted within the target DNA sequence (hereinafter referred to as “target base sequence”). ”) Is converted to another base or base sequence (hereinafter referred to as” converted base ").
- the conventional SFHR method denatures double-stranded DNA fragments (eg, PCR products) into single-stranded DNA fragments
- both the sense and antisense strands act on the target DNA sequence.
- the method of the present invention is characterized in that only a single-stranded DNA fragment (sense strand or antisense strand, preferably sense strand) is allowed to act on a target DM sequence.
- a “single-stranded DNA fragment” is homologous to a target DNA sequence except that it contains a converted base.
- “homology” refers to at least 95%, preferably at least 98%, more preferably at least 99%, and ideally, at least one of the sense strand and the antisense strand of the double-stranded target DNA sequence. Although it means that the sequences are 100% identical, it is preferable that they are homologous to the sense strand of the target DNA sequence from the viewpoint of conversion efficiency.
- this single-stranded DNA fragment is unmodified. That is, it is a DNA fragment that is not modified at both ends with phosphorothioate, 20-Me-NA, or LNA (Locked nucleic acid) as in the above-mentioned modified oligonucleotide.
- the “size of single-stranded DNA fragment” is selected from the range of 300 to 3,000 bases depending on the length of the target DNA sequence, the number of target bases, and the like. For example, it is a DNA fragment having a length of 300 to 500 bases, 500 to 800 bases, 800 to 1200 bases, 1200 to 1700 bases, 1700 to 2300 bases, or 2300 to 3000 bases.
- Target DNA sequence is not particularly limited as long as it is a DNA sequence existing in a cell. Instead, it can target DNA sequences that have some function in cells, such as DNA sequences of genomic genes, DNA sequences of mitochondria, and DNA sequences of plasmids.
- the number of “converted bases” in a single-stranded DNA fragment depends on the number of target bases in the target DNA sequence. For example, in the case of individual base conversion (base substitution, base deletion, base addition), depending on the target DNA sequence and the size of the single-stranded DM fragment, one or more (about 2 to 30) are required. However, for efficient substitution, about 1 to 10 is preferable. In the case of sequence conversion, a sequence consisting of about 2 to 30 bases, preferably about 2 to 10 bases, is used as the converted base.
- the position of the conversion base in the single-stranded DNA fragment is not particularly limited, but is preferably not at the end of the DM fragment.
- the single-stranded DNA fragment can be prepared, for example, as follows.
- the single-stranded DNA fragment may be, for example, a normal genomic gene DNA sequence or its cDM. It is preferable that the DNA is amplified by a single-stranded DNA vector (for example, phagemid DM or the like), fragmented with an enzyme or the like, and separated and purified into a desired portion and an unnecessary portion. By such preparation, it is not necessary to separate from the complementary strand, and a single-stranded DNA fragment can be obtained regardless of whether the strand is short or long.
- a single-stranded DNA vector for example, phagemid DM or the like
- a method for preparing the DM fragment a method of amplifying type I DNA in a test tube (for example, a PCR (Polymerase Chain Reaction) method, a SBN (Nucleic acid sequence based amplification if ication) method, a TMA (Transcript ion -mediated amplif ication) methods] are known, but in these methods, it is difficult to amplify a single-stranded DNA fragment that is highly consistent with type I DNA.
- PCR Polymerase Chain Reaction
- SBN Nucleic acid sequence based amplification if ication
- TMA Transcript ion -mediated amplif ication
- the method of the present invention can be used for producing a compound screening system or a disease model cell or a disease model animal.
- a single-stranded DNA fragment for converting one or more bases of a normal target DNA sequence is obtained by a method using a commercially available mutagenesis kit or the like.
- it can be prepared from single-stranded circular DNA (for example, phagemid DNA, etc.) prepared by a known method such as a mutagenesis type PCR method.
- the single-stranded DNA fragment can be introduced into cells existing in an organism.
- a method in which the single-stranded DNA fragment is administered to an organism in a state of being mixed with an appropriate solvent can be adopted.
- a single-stranded DNA fragment may be embedded in a hollow nanoparticle or ribosome presenting a biorecognition molecule and then introduced into an organism.
- the elect opening method can be adopted.
- the method of introducing a single-stranded DNA fragment into cells existing in this organism is that the target DNA sequence of interest has one or more base conversion mutations to cause disease.
- a “causal disease gene” that is the cause it is possible to correct the transversion mutation of the causative gene (fifth invention).
- it can be used as a therapeutic drug for diseases caused by base conversion mutations in genes (the fourth invention). ).
- Mutations known to be the causes of genetic diseases include not only single nucleotide changes but also long insertion mutations caused by CAG repeats such as those found in Huntington's disease (McMurray CT.Huntington's disease: new Hops for therapeutics. Trends Nerosci. 2001; 24: S32-S38) and a long deletion mutation in the muscular dystrophy dystrophin gene (Forrest SM, Cross GS, Speer A, Gardner-Medwin D, Bums J and Davies KE.Preferential delet ion of exons in Duchenne aid Becker muscular dystrophines.Nature. 1987; 329: 638-640.
- the second invention of this application is a “cell” in which one or more bases or a base sequence of the target DNA sequence has been converted to another base or base sequence by the method of the first invention.
- prokaryotic cells such as Escherichia coli and Bacillus subtilis
- eukaryotic cells such as yeast, insect cells, and animal and plant cells
- Cells created in this way are, for example, cells in which one or more base changes have been introduced into the functional gene sequence, and cells having a specific function deficiency or enhancement, such as drugs or bioactive substances. It can be used as a material for in vitro screening of cytotoxic substances and the like.
- the cells used in bioreactors, fermentation engineering, etc. can be used to delete specific cell functions that are “inconvenient” in their use.
- the third invention of this application is a biological individual having the cells of the second invention in the body, particularly a multicellular organism such as animal and plant cells.
- the individual organism is It may be a living individual transplanted with clear cells (cells converted in vitro) into the body, or as a result of the introduction of a single-stranded DNA fragment into the body, one or more of the target DNA sequences
- a biological individual in which a plurality of bases have been converted to other bases or base sequences may be used.
- Such an individual is useful as a “disease model animal”, for example, when the base substitution of the target DNA sequence causes a disease. It can also be used for applications such as base conversion of various genes and in vivo screening of drug components and toxic substances.
- pTE HEX which is the target plasmid, cannot express a normal HygEGFP gene in mammalian cells and E. coli because a termination mutation (Stop: TGA) is introduced into codon 34 of the HygEGFP gene.
- HygEGFP gene a single-stranded DNA fragment (HygEGFP gene) in which codon 34 is normal Ser (TCA) into cells, codon 34 of this mutant HygEGFP gene is restored to normal Ser (TCA). This was confirmed by two phenotypes: hygromycin resistance and EGFP fluorescence.
- the double-stranded DNA fragment used for comparison was obtained using restriction enzymes from a plasmid replicated in E. coli (Drake JW. Nature. 1969: 221: 11329), which is twice as accurate as the PCR method.
- a double-stranded DNA fragment was prepared and heat-denatured (dsHES) was used.
- the Kpnl-Sall fragment of pHygEGFP (CLONTECH Laboratories Inc., CA) was introduced into pALTER-1 (Promega Corp., WI) at the same restriction enzyme site, while pALHE was introduced into the Altered Sites II in vitro Mutagenesis System (Promega Corp., WI) to perform a site-directed mutagenesis reaction.
- pALTER-1 Promega Corp., WI
- pALHE was introduced into the Altered Sites II in vitro Mutagenesis System (Promega Corp., WI) to perform a site-directed mutagenesis reaction.
- an Xhol site was introduced using the oligonucleotide Xho (5′-cggcacctcgagcacgcggat-3 ′: SEQ ID No. 1) (pALHEX).
- codon 195 changed from Val to Glu, but did not affect the quantification of the gene repair reaction.
- a PMCI site serving as a gene marker was introduced at codon 34 of the normal HygEGFP gene using the oligonucleotide Silent (5'-gcgaagaatcacgtgctttca-3 *: SEQ ID No. 2) (pALHEXP).
- pALHEXP oligonucleotide Silent
- the oligonucleotide Opal 5'-ggcgaagaatgacgtgcttttc-3 ': SEQ ID No. 3 was used (pALHEXB).
- Phagemid was obtained by introducing the Xhol fragment of pTENHES into the Xhol site of pBluescript II SK + (FIG. 1B).
- the resulting pBSHESZ Antisense and pBSHES / Sense were inserted in the opposite direction to the orientation of the Xhol fragment, pBluescript II SK + (Stratagene, CA), in the opposite direction, and the single-stranded circular form obtained from this phagemid.
- the DNA contains the antisense or sense sequence of the hHygEGFP gene, respectively. Each insertion direction was confirmed by restriction enzymes Nael and PmaCI.
- the phage was suspended in 20 ml of 0.3 M AcONa / lmM EDTA, and cyclized with phenol, phenol / chloroform (1Z1) and chloroform. The single-stranded DNA was recovered. The 25 ml EtOH was added to D solution was allowed to stand at room temperature for 15 minutes, precipitated by centrifugation, and dissolved in H 2 0 in 500 l.
- 606 bp fragment was separated by 3.5% low melting point agarose gel and recovered by phenol / chloroform extraction.
- a new piece of 606 nt was recovered by the same operation as for the double-stranded, using 5 X Xhol for single-stranded pBSHES / AntiSense and pBSHES / Sense lpiol (l.lig).
- oligonucleotides that are located at the 5 'and 3' Xhol sites of pBSHES / AntiSense are Reotide AS5 '(5'-ccccctcgagatcccc-3': SEQ ID No. 6) and AS3 '(5'-cggcacctcgaggtcgac-3': SEQ ID No.
- the recovered fragments were each purified by gel filtration (NAP5 columns, Amersham Biosciences Ltd., Buckinghamshire, England), and the degree of purification was confirmed by A 2M / A 2M being 1.8 or more.
- the concentration was calculated as 1.00D26 () , 50 £ g for double-stranded DNA and 40 xg for single-stranded DNA.
- DH-5Q! Cultured in 1.4 ml of LB medium was transferred to 12.5 ml of fresh LB medium at 125 / zl per sample and cultured for another 4 hours.
- This was transferred to a 0.1-cm gap cuvette together with the pDNA of 41, and 4,8 kV, 25 / zF, 200 ⁇ was applied using Gene Pulse rII (Bio-Rad laboratories inc.CA). The election opening was performed under the following conditions.
- the plasmid-introduced DH-5Q was cultured in lml S0C medium for 1 hour, diluted in LB medium containing 50 / g / ml Amp, and cultured overnight. At this time, a part of DH-5 ⁇ was taken, inoculated on LB agar medium, and the electroporation efficiency was measured by the number of colonies, but no significant difference was observed. The DH-5 ⁇ obtained the next day was collected by centrifugation and resuspended in mnl of TEG. After adding 0.23 of 1 (1% SDS) and gently stirring, 150 l Sol III (3M potassium acetate, 11.5% acetic acid) was further added, and the mixture was left on ice for 5 minutes.
- the separated supernatant was treated with phenol / chloroform (1/1), and the plasmid DNA was recovered by ethanol precipitation, and dissolved in 20 d 3 ⁇ 40.
- BL21 (DE3) was transformed by the same operation as DH-50 !.
- the digested solution was inoculated on an LB agar medium (HygO: 50 ⁇ g / ml Amp, 10 zM IPTG) without hygromycin B, and incubated at 37 ° C. After 12-24 hours, colonies that grew on HygO were counted, and colonies that grew on Hyg75 after 26-48 hours were analyzed using FLA2000G (FUJI PHOTO FILM Co., Ltd., Kanagawa, Japan), and EGFP was analyzed. Colonies emitting fluorescence (Ex. 473 ⁇ , El. 520 dishes) were counted. Gene repair efficiency was calculated using the number of colonies obtained with HygO as the denominator and the number of EGFP fluorescence-positive colonies obtained with Hyg75 as the numerator.
- T7pro (5'-taatacgactcactataggg-3 ': SEQ ID No. 10) and HET7
- pTENHES and pTENHEX incorporate the normal and mutant HygEGFP genes, respectively, and their codons 34 are Ser (TCA '. PiaCI) and Stop (TGA: BigBI).
- the phagemid vectors pBSHES-No AntiSense and pBSHEXZSense (Fig. IB) for creating single strands incorporate a part of the normal HygEGFP gene obtained by Qiol treatment of pTE thigh S. When they become strands, they encode an antisense sequence and a sense sequence, respectively.
- DNA fragments obtained by Xhol treatment of pTENHES and the main chain cyclic pBSHES / AntiSense and pBSHES / Sense will be referred to as dsHES, fiS and fSense, respectively.
- Target plasmid PTE secret X is introduced into CH0-K1 cells together with dsHES, fAnt iS, and fSense did.
- This plasmid has the mutant HygEGFP gene under the control of the CMV promoter for expression in mammalian cells and the T7 promoter for expression in E. coli, so that a successful repair The fluorescence of EGFP is observed from Fig. 2 (Fig. 2).
- the repaired gene can be easily isolated (Fig. 3).
- the target pTENHEX was introduced into CH0-K1 cells along with the DNA fragment obtained by Xol treatment.
- dsHES was double-stranded, it was heat denatured immediately before introduction into cells, as in the conventional SFH method.
- f AntiS and f Sense are single-stranded DNAs, they were subjected to heat denaturation and introduced into cells in the same manner as dsHES in order to solve intramolecular higher-order structures and compare them with dsHES. 48 hours after the start of transfection, the cells were observed with a fluorescence microscope, and it was observed that the repaired HygEGFP gene was expressed in CH0-K1 cells (Fig. 2).
- Plasmids were recovered from these cells, and hygromycin B-resistant and EGFP-positive colonies (FIG. 3) obtained by transforming BL21 (DE3) were confirmed, and the gene repair efficiency was calculated.
- dsHES a double-stranded DNA fragment
- Figure 4 equivalent to the conventional SFHR method
- f AntiS a single-chain DM fragment
- Figure 4 did not show a gene repair efficiency exceeding dsHES (0.15%). It showed about 5 times higher gene repair efficiency ( Figure 4).
- PCR product (pcrHES) was amplified using the following primer 1 and TaQ polymerase (Toyobo), the 3′-end was blunt-ended with Blunting High Kit (Toyobo), and the dsHES and Similarly, 3.5% low melting point agarose electrophoresis was used.
- the results are as shown in FIGS.
- the PCR product (pcrHES) was less effective in obtaining the hygromycin BiHfe trait of the cell than the single-stranded sense DNA fragment (fSense) (FIG. 3), and the conversion efficiency was 0.16%. This value was less than half of the conversion efficiency of dsHES (0.43%), and was one-tenth or less of the conversion efficiency of single-stranded sense DNA fragment (fSense) (2.0%).
- the invention of the present application provides a method for converting a specific base or base sequence of an intracellular DNA sequence to another base or base sequence with high efficiency. This makes it possible to efficiently repair a mutated site in a disease gene or the like.
Landscapes
- Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- General Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Plant Pathology (AREA)
- Biophysics (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Crystallography & Structural Chemistry (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP05710043A EP1726657A4 (en) | 2004-02-10 | 2005-02-03 | METHOD OF CONVERTING A BASE IN A DNA SEQUENCE |
| CA2555489A CA2555489C (en) | 2004-02-10 | 2005-02-03 | Method of converting base in dna sequence |
| JP2005517820A JP4707561B2 (ja) | 2004-02-10 | 2005-02-03 | Dna配列の塩基変換方法 |
| US10/588,792 US20070105798A1 (en) | 2004-02-10 | 2005-02-03 | Method of Converting Base in DNA Sequence |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004034019 | 2004-02-10 | ||
| JP2004-34019 | 2004-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005075657A1 true WO2005075657A1 (ja) | 2005-08-18 |
Family
ID=34836162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/001991 Ceased WO2005075657A1 (ja) | 2004-02-10 | 2005-02-03 | Dna配列の塩基変換方法 |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1726657A4 (ja) |
| JP (1) | JP4707561B2 (ja) |
| CA (1) | CA2555489C (ja) |
| WO (1) | WO2005075657A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006064813A1 (ja) * | 2004-12-13 | 2006-06-22 | National University Corporation Hokkaido University | 核酸構築物及びそれを利用した標的領域への変異導入方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6010908A (en) | 1992-08-21 | 2000-01-04 | The Regents Of The University Of California | Gene therapy by small fragment homologous replacement |
| WO2001050847A2 (en) | 1999-12-23 | 2001-07-19 | Pangene Corporation | Reca / rad51 recombinase-mediated production of recombinant organisms |
| WO2002066076A1 (en) | 2001-02-21 | 2002-08-29 | Melbourne Neuromuscular Research Institute | A method of treatment and agents useful for same |
| US20020160514A1 (en) | 2001-02-26 | 2002-10-31 | Goncz Kaarin Kerr | Expression vector system and a method for optimization and confirmation of DNA delivery and quantification of targeting frequency |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2199393B1 (en) * | 2000-04-17 | 2012-10-31 | Dyax Corp. | Methods of constructing display libraries of genetic packages for members of a diverse family of peptides |
| WO2002026967A2 (en) * | 2000-09-25 | 2002-04-04 | Thomas Jefferson University | Targeted gene correction by single-stranded oligodeoxynucleotides |
-
2005
- 2005-02-03 EP EP05710043A patent/EP1726657A4/en not_active Withdrawn
- 2005-02-03 JP JP2005517820A patent/JP4707561B2/ja not_active Expired - Fee Related
- 2005-02-03 CA CA2555489A patent/CA2555489C/en not_active Expired - Fee Related
- 2005-02-03 WO PCT/JP2005/001991 patent/WO2005075657A1/ja not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6010908A (en) | 1992-08-21 | 2000-01-04 | The Regents Of The University Of California | Gene therapy by small fragment homologous replacement |
| WO2001050847A2 (en) | 1999-12-23 | 2001-07-19 | Pangene Corporation | Reca / rad51 recombinase-mediated production of recombinant organisms |
| WO2002066076A1 (en) | 2001-02-21 | 2002-08-29 | Melbourne Neuromuscular Research Institute | A method of treatment and agents useful for same |
| US20020160514A1 (en) | 2001-02-26 | 2002-10-31 | Goncz Kaarin Kerr | Expression vector system and a method for optimization and confirmation of DNA delivery and quantification of targeting frequency |
Non-Patent Citations (6)
| Title |
|---|
| COLOSIMO ET AL: "Targeted correction of a defective selectable marker gene in human epithelial cells by small DNA fragments", MOL. THER., vol. 3, no. 2, February 2001 (2001-02-01), pages 178 - 185, XP002987521 * |
| GONCZ ET AL: "Targeted replacement of normal and mutant CFTR sequences in human airway epithelial cells using DNA fragments", HUM. MOL. GENET., vol. 7, no. 12, 1998, pages 1913 - 1919, XP002987520 * |
| GRUENERT ET AL: "Sequence-specific modification of genomic DNA by small DNA fragments", J. CLIN. INVEST., vol. 112, no. 5, September 2003 (2003-09-01), pages 637 - 641, XP002987522 * |
| KOWALCZYKOWSKI: "Initiation of genetic recombination and recombination-dependent replication", TRENDS BIOCHEM. SCI., vol. 25, April 2000 (2000-04-01), pages 156 - 165, XP004195982 * |
| LING & ROBINSON: "Approaches to DNA Mutagenesis: An Overview", ANAL. BIOCHEM., vol. 254, 1997, pages 157 - 178, XP000955621 * |
| See also references of EP1726657A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006064813A1 (ja) * | 2004-12-13 | 2006-06-22 | National University Corporation Hokkaido University | 核酸構築物及びそれを利用した標的領域への変異導入方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1726657A4 (en) | 2008-08-20 |
| JP4707561B2 (ja) | 2011-06-22 |
| CA2555489A1 (en) | 2005-08-18 |
| JPWO2005075657A1 (ja) | 2007-10-11 |
| CA2555489C (en) | 2012-05-08 |
| EP1726657A1 (en) | 2006-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114787347B (zh) | 新颖的mad核酸酶 | |
| US7244609B2 (en) | Synthetic genes and bacterial plasmids devoid of CpG | |
| CN111902536B (zh) | 用于真核基因组修饰的改造的cas9系统 | |
| CA2312474C (en) | Novel dna cloning method | |
| CN112481289A (zh) | 一种转录环状rna的重组核酸分子及其在蛋白表达中的应用 | |
| KR102151065B1 (ko) | 동물 배아의 염기 교정용 조성물 및 염기 교정 방법 | |
| CN112779240B (zh) | Crispr家族蛋白与核酸的定点偶联方法及其偶联物和用途 | |
| CN109072235A (zh) | 通过核递送crispr/cas9追踪并操纵细胞rna | |
| HU228977B1 (hu) | Eljárások és összetételek homológ rekombinációval megvalósított irányított klónozáshoz és szubklónozáshoz | |
| CN114380922A (zh) | 在细胞内产生点突变的融合蛋白、其制备及用途 | |
| JP7250349B2 (ja) | 細胞の有する二本鎖dnaの標的部位を改変する方法 | |
| CN110699407B (zh) | 一种长单链dna的制备方法 | |
| CN109306361A (zh) | 一种新的a/t到g/c碱基定点转换的基因编辑系统 | |
| JP2001514498A (ja) | 多数のdna断片の同時連結方法 | |
| KR20230157387A (ko) | Cas 효소를 이용한 다중 편집 | |
| EP1098987B1 (en) | Method for transformation of animal cells | |
| CN109337904B (zh) | 基于C2c1核酸酶的基因组编辑系统和方法 | |
| EP3491131B1 (en) | Targeted in situ protein diversification by site directed dna cleavage and repair | |
| WO2025199358A1 (en) | Nuclease system for genome editing | |
| WO2005075657A1 (ja) | Dna配列の塩基変換方法 | |
| CN111051509A (zh) | 用于电介质校准的含有c2cl核酸内切酶的组合物以及使用其进行电介质校准的方法 | |
| KR20230058482A (ko) | 표적 dna의 편집 방법, 표적 dna가 편집된 세포의 제조 방법, 및 그것들에 사용하는 dna 편집 시스템 | |
| CN100540664C (zh) | 将突变转移到靶核酸中的方法 | |
| US20070105798A1 (en) | Method of Converting Base in DNA Sequence | |
| GB2436835A (en) | Method for cloning and expressing a target gene by homologous recombination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| DPEN | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2005517820 Country of ref document: JP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2555489 Country of ref document: CA |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2005710043 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2007105798 Country of ref document: US Ref document number: 10588792 Country of ref document: US |
|
| WWP | Wipo information: published in national office |
Ref document number: 2005710043 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 10588792 Country of ref document: US |