摘要:
A method of analyzing, in chromosomal DNA having a retroviral vector incorporated therein, DNA region derived from chromosome which is adjacent to the vector, characterized in that a primer extension reaction and a nucleic acid amplification reaction are carried out in the presence of a compound capable of lowering the Tm value of double stranded nucleic acid. There are further provided a kit and buffer for use in this method.
摘要:
A method of stabilizing a reaction reagent for highly sensitively and specifically amplifying a target nucleic acid in a sample with the use of a chimeric oligonucleotide primer and a method of storing the same over a long time; and a method of highly sensitively detecting a pathogenic microorganism and a virus.
摘要:
A gene encoding a polypeptide having an activity of digesting sulfated fucogalactan which is useful in sugar chain engineering reagents, analyzing the structures of sulfated fucose-containing polysaccharides and preparing degraded products of the polysaccharides; a genetic engineering process for producing the polypeptide; and the polypeptide obtained by the process.
摘要:
A method of forming a complex consisting of a double-stranded nucleic acid and oligonucleotide(s) characterized by comprising: the step of mixing a double-stranded nucleic acid with at least one oligonucleotide to give a reaction mixture, wherein the oligonucleotide is a chimeric oligonucleotide containing at least a member selected from among deoxyribonucleotides and nucleotide analogs and a ribonucleotide and having a sequence substantially complementary to the base sequence of one of the strands of the double-stranded nucleic acid as described above; and the step of incubating the reaction mixture to form a complex under such conditions that the above-described double-stranded nucleic acid is not denatured.
摘要:
A process for producing a target protein at low temperature, comprising inducing expression of not only a vector having introduced therein a gene coding for the target protein but also a vector having a chaperone gene introduced therein.
摘要:
A polypeptide having an RNase III activity with which the length of a dsRNA degradation product can be easily controlled depending on reaction conditions and, in preparing a dsRNA having a length allowing it to serve as an siRNA in RNA interference, a low-molecular weight product having little RNA interferring effect is scarcely formed; a method of degrading a dsRNA with the use of the above polypeptide; and a composition and a kit for the above method.
摘要:
A vector having a region encoding a cold shock protein gene mRNA-origin 5'-nontranslated region, characterized in that the 5'-nontranslated region has a mutation having been transferred therein so as to change the distance of the stem structure formed by the region.
摘要:
Production of efficiently producing agaro-oligosaccharide; a polypeptide having an agarase activity which is usable in, for example, efficiently extracting a substance such as a nucleic acid from an agarose gel; the amino acid sequence of the polypeptide; a gene encoding the polypeptide; a process for producing the polypeptide; a process for producing agaro-oligosaccharide; and a process for extracting a substance such as a nucleic acid from an agarose gel.
摘要:
A method of highly sensitively and specifically amplifying a target nucleic acid in a sample by using a chimeric oligonucleotide primer having a ribonucleotide provided at the 3'-terminus or in the 3'-terminal side, an endoribonuclease and a DNA polymerase having a chain transfer activity, i.e., an isothermal and chimeric primer-initiated amplification of nucleic acids (ICAN) method; a method of detecting an amplified fragment obtained by using the above method; a process for producing a target nucleic acid by using the above amplification method; and chimeric oligonucleotide primers to be used in these methods.
摘要:
Therapeutic or preventive agents for diseases requiring apoptosis induction, cancerous diseases, diseases requiring the inhibition of active oxygen production, those requiring the inhibition of nitrogen monoxide production, those requiring the inhibition of prostaglandin synthesis, those requiring the inhibition of synovial cell proliferation, those requiring the induction of heat shock protein production or those requiring the inhibition of α-glycosidase, which contain as the active ingredient compounds selected from among compounds represented by general formula (I), (wherein X and Y are each H or CH2OH, provided that when X is CH2OH, Y is H, while when X is H, Y is CH2OH), those represented by general formula (II), (wherein R is a residue obtained by freeing a compound having an SH group from the SH group) and salts of both; and foods, drinks, cosmetics and so on, containing compounds selected from among compounds of general formula (I), those of general formula (II) and salts of both.