摘要:
Disclosed is a cyclic reverse transcription method, which comprises performing reverse transcription reaction in one or more cycles, each cycle comprising the steps of: (i) performing reaction with a reverse transcription reaction solution comprising template RNA, RNA-dependent DNA polymerase, a reaction buffer, primers for reverse transcription and dNTPs, and optionally, a stabilizer, at 10° C. to 40° C. and, (ii) performing reaction with the resultant reaction solution at 42° to 55° C.
摘要:
The present invention relates to a gold-plated stent and its preparation method. More specifically, it relates to a gold-plated stent that is coated with various chemical materials such as 2-aminoalkanethiol, epihalogenhydrin, and diamine compounds in a sequence and also oligonucleotide gold-plated stent, which is prepared by binding oligonucleotide, a biomaterial, to the gold-plated stent coated with said chemicals. The oligonucleotide gold-plated stent of the present invention has an advantages of raising the local concentration in injured parts and minimizing the toxicity overall the body, so it can be used for prevention of restenosis after angioplasty.
摘要:
Disclosed is a cyclic reverse transcription method, which comprises performing reverse transcription reaction in one or more cycles, each cycle comprising the steps of: (i) performing reaction with a reverse transcription reaction solution comprising template RNA, RNA-dependent DNA polymerase, a reaction buffer, primers for reverse transcription and dNTPs, and optionally, a stabilizer, at 10° C. to 40° G and, (ii) performing reaction with the resultant reaction solution at 42° to 55° C.
摘要:
The present invention relates to a dried composition for hot-start PCR, more precisely a dried composition for hot-start PCR with improved stability and long-term storagability which is characteristically prepared by the steps of preparing a reaction mixture by mixing an aqueous solution containing reaction buffer, MgCl2, 4 types of dNTPs, DNA polymerase with pyrophosphate and pyrophosphatase in a reaction tube; and drying the reaction mixture prepared above, a preparation method of the same and a method for amplifying nucleic acid using the same. The dried composition for hot-start PCR is added with pyrophosphate and pyrophosphatase together before drying, so that it can have improved stability and long-term storagability as well as convenience in use, compared with the conventional compositions for hot-start PCR. Therefore, this composition can be effectively used for hot-start PCR, multiplex PCR or real-time quantitative PCR.
摘要:
The present invention relates to a lactic acid bacterium isolated from human mother's milk, more precisely a Lactobacillus gasseri BNR17 strain that is isolated from Korean mother's milk and has excellent probiotic activity including acid resistance, bile acid resistance and antimicrobial activity and weight gaining inhibitory effect as well Again, the Lactobacillus gasseri BNR17 of the present invention has excellent acid resistance, bile acid resistance, enteric absorption activity and antimicrobial activity against pathogenic microorganisms, in addition to the weight gaining inhibitory effect by synthesizing indigestible polysaccharides from monosaccharides included in food taken and releasing the synthesized polysaccharides out of the body. Therefore, the strain of the invention, owing to such beneficiary effects, can be effectively used not only for the production of fermented milk, other fermented food products and animal feeds but also for the production of live cell products and food additives for preventing weight gaining.
摘要:
A inhibition method of target mRNA expression includes: (a) obtaining binding energy of a double combination section on a dsRNA sequence of all combination comprising complementary nucleotides to a random target mRNA; (b) dividing the binding energy into four sections on the dsRNA sequence of each combination to obtain a difference of the mean binding energy between each section and convert into a score of a relative combination energy pattern; (c) selecting siRNA whose inhibition efficiency to target mRNA is expected to be high by applying the converted score to the dsRNA sequence with other factors that affect the efficiency of siRNA; and (d) inhibiting target mRNA expression using the selected siRNA. As a result, a researcher or an experimenter can analyze patterns of a relative binding energy on base sequences of unknown siRNA without actual experiments to determine whether the siRNA is effective or ineffective rapidly, thereby design and production efficiency of siRNA can be maximized and target mRNA can be effectively inhibited with efficient siRNA to the target mRNA.
摘要:
The present invention relates to a detection method of nucleic acid amplification using probe labeled with intercalating dye. More particularly, the present invention is directed to a real-time detection method of nucleic acid amplification, comprising the steps of i) producing an aqueous buffer which contains a nucleic acid, a pair of primers for amplification of said nucleic acid, a fluorescent probe wherein a fluorescent dye of which intensity of fluorescence is varied when the dye is intercalated into a double-stranded nucleic acid, is connected with an oligonucleotide of which base sequence is complementary with at least a part of said nucleic acid, four (4) kinds of nucleotides and DNA polymerase; ii) denaturing said doublestranded nucleic acid into single strands by heating the aqueous buffer prepared in step i) up to 931 C to 96 C; iii) annealing said pair of primers with said single strand by cooling the solution obtained in step ii) up to 50 C. to 571 C; iv) replicating said single-stranded nucleic acid by heating the solution obtained from step iii) up to 701 C to 74° C.; v) denaturing said replicated nucleic add into single strands by heating the solution obtained in step iv) up to 931 C to 961 C; vi) annealing said fluorescent probe with said single-stranded nucleic acid by cooling the solution obtained in step v up to 501 C to 57 C; vii) measuring an intensity of the fluorescence emitted from the solution obtained in step vi); and viii) repeating more than one steps iv) through vii).
摘要:
The present invention relates to a bio-molecular microchip and manufacturing process thereof. More particularly, the present invention is directed to a bio-molecular microchip comprising a substrate; and an amine group-containing bio-molecule immobilized onto a glycidyl moiety-containing polyacrylamide gel via covalent bonds formed between the glycidyl moiety of the polyacryl amide gel and the amine group of the bio-molecule by epoxy ring-opening reaction.
摘要:
A method and apparatus for sterilizing and disinfecting bedclothes. The method includes preparing a sterilizing room defined by a cover; placing bedclothes into the sterilizing room; and exposing the bedclothes to ultraviolet rays and ozone generated by a generator in communication with the sterilizing room. The apparatus includes a generator for generating ultraviolet rays and ozone and a cover for defining a sterilizing room to accommodate the bedclothes.
摘要:
The present invention provides an improved method for silver staining of DNA which comprises the steps of linking DNA to a polymer which has a high affinity for the DNA and binding of a plenty of silver ions to the DNA-polymer complex. The silver staining method of the present invention can be applied for the detection and sequencing of trace amount of DNA.