摘要:
Isolated DNAs which are DNAs having a base sequence represented by any of SEQ ID NOS:1 to 6 in Sequence Listing or fragments thereof and showing a stationary phase-specific promoter activity in gram positive bacteria.
摘要:
A nucleic acid comprising a transcription regulation sequence whose transcription is induced by a trans-acting factor of a human immunodeficiency virus and a gene encoding a polypeptide having an endoribonuclease activity specific to single-stranded RNA, wherein the gene is located in such a position that the expression of the gene can be regulated by the transcription regulation sequence; a method for production of a cell showing an inhibited replication of a human immunodeficiency virus therein, the method comprising the step of introducing the nucleic acid into a cell; and a method for treatment or prevention of a human immunodeficiency virus infection.
摘要:
Killifish genes which are expressed specifically to females in accordance with the phenotype sex, characterized by having a base sequence selected from among the base sequences represented by SEQ ID NOS:1 to 21 in Sequence Listing.
摘要:
Gene therapeutics to be used in treating diseases showing sensitivity to gene therapy, characterized by containing as the active ingredient an efficacious amount of a functional substance which has a function of having an affinity for a virus containing a gene usable in the gene therapy and another function of having an affinity specific for a target cell with a need for the gene transfer, or an efficacious amount of a functional substance which has an affinity for the above virus and an efficacious amount of another functional substance which has an affinity specific for the above cell.
摘要:
Remedies or preventives for diseases with a need for the regulation of the production of cytokines, diseases with a need for the production of nitrogen monoxide or allergic diseases characterized by containing as the active ingredient fucoidan and/or its decomposition product; and foods, drinks or feeds for regulating the production of cytokines, foods, drinks or feeds for inducing the production of nitrogen monoxide, antiallergic foods, drinks or feeds, etc. containing fucoidan and/or its decomposition product.
摘要:
α-Agarase having the following physicochemical properties: (1) function: hydrolyzing an α-1,3 bond between 3,6-anhydro-L-galactose and D-galactose; (2) substrate specificity: acting on agarose and agarohexaose and higher agarooligosaccharides but not on agarotetraose; (3) optimum temperature: showing its enzymatic activity at 55 °C or below; and (4) heat stability: sustaining 20% or more of the activity after being treated at 48 °C for 30 seconds.
摘要:
Improved methods for transferring a gene into target cells by using a retrovirus, wherein the gene transfer efficiency is improved and the target cells are efficiently transformed by binding the retrovirus to a functional substance which is immobilized on a carrier and having an activity of binding to retroviruses followed by washing; using an antibody capable of specifically recognizing cells, laminin or a mannose-rich type sugar chain as a substance having an activity of binding to the target cells; pre-treating the target cells so as to activate transfferin receptor; or introducing a new functional group into the functional substance.
摘要:
In the case where a template nucleic acid has sequences substantially the same as each other, a primer is designed in a region between these sequences so as to give a product in a ladder structure in which a target region is polymerized in a single sequence via the same sequences in the ICAN reaction. By using a chimeric oligonucleotide primer and a ladder-forming oligonucleotide primer containing a specific base sequence, an amplification product having a ladder structure can be positively formed and thus the sensitivity, amplification efficiency and reaction speed in the ICAN reaction can be elevated.
摘要:
A substantially pure, isolated antigenic protein originating in fungi of the genus Malassezia, characterized by having an avidity with IgE antibodies originating in allergic patients; antigenic fragments originating in said protein; a specific antibody against said antigenic protein or fragments; a diagnostic, therapeutic or prophylactic agent for malassezian allergic diseases containing the antigenic protein or fragments as the active ingredient; a novel recombinant malassezian antigenic protein; a gene coding for the protein; and epitopes of the protein.
摘要:
The invention relates to a gene isolated from E. coli, dep, which confers resistance to the antibacterial activity of 4,5-dihydroxy-2-cyclopenten-1-one (DHCP). The invention further relates to the putative protein encoded by dep, which is a hydrophobic, transmembrane efflux protein specific for DHCP. The invention further relates to plasmids containing the dep gene, and to bacterial cells expressing dep. Furthermore, the invention provides applications for use in conferring resistance to antibacterial activity in organisms. The dep gene can be used to identify compounds which inhibit the efflux activity responsible for the resistance to DHCP or to compounds which are functionally equivalent to DHCP.