摘要:
The present invention relates to a novel microorganism producing L-type poly-gamma-glutamic acid and an L-type poly-gamma-glutamic acid produced thereby and, more particularly, to Bacillus megaterium Toha (KCTC11752BP) isolated from salt-fermented Toha shrimps (Korean traditional fermented food) and an L-type poly-gamma-glutamic acid produced thereby. The novel microorganism Bacillus megaterium Toha (KCTC11752BP) has the ability to produce L-type poly-gamma-glutamic acid which can be used in high-value-added microbial agents, probiotic agents, immune-activating agents, animal drugs, cosmetics, moisture absorbers, thickeners, biodegradable plastics, etc.
摘要:
The present invention relates to a method for expressing each of peptide antibiotics P5 3 and Anal3 35 having amphiphilicity and showing antibacterial, antifungal and anticancer activities 61, 63, 65, 67, 69, 71, on the microbial surface, using a vector containing outer membrane protein genes (pgsBCA) that are derived from Bacillus sp. strains and involved in the synthesis of poly-gamma-glutamate. Moreover, the present invention relates to lactic acid-forming bacteria having each of the peptide antibiotics P5 15 and Anal3 43 expressed on their surface, and the use thereof. According to the present invention, the peptide antibiotics can be expressed on the surface of various microorganisms transformed with the surface expression vectors. The inventive method for the surface expression of the peptide antibiotics allows the peptide antibiotics to be mass-produced without a purification process. Thus, the inventive method has very high industrial applicability. Further, the present invention can be applied to other peptide antibiotics besides P5 3 and Anal 3 35.
摘要:
The present invention relates to a composition for improving cellular immunity, which comprises an effective dose of poly-gamma-glutamic acid, and more particularly, to a composition for improving cellular immunity comprising poly-gamma-glutamic acid, which has effects of inducing enhancement of TLR-mediated Th1 cellular immunity and improving antigen presenting activity to maintain the improved activity. The inventive composition comprising an effective dose of poly-gamma-glutamic acid has very little toxicity and side effects, and can be added to a vaccine composition for preventing and treating animal viral or bacterial infections and cancer, or a vaccine composition for preventing and treating human viral or bacterial infections and cancer to show cellular immunity-enhancing effects.
摘要:
Disclosed herein are an aldolase gene promoter and the use thereof, more particularly, disclosed are a promoter of aldolase gene derived from Lactobacillus casei, having a base sequence of SEQ ID NO: 1, an expression vector containing said promoter, and a recombinant microorganism transformed with said expression vector. The recombinant microorganism transformed with the expression vector containing the disclosed promoter can effectively express a target protein on the surface thereof, and thus will be useful as vaccine vehicles and the like.
摘要翻译:本文公开了醛缩酶基因启动子及其用途,更具体地,公开了源自干酪乳杆菌的醛缩酶基因的启动子,其具有SEQ ID NO:1的碱基序列,含有所述启动子的表达载体和转化的重组微生物 与所述表达载体。 用含有公开的启动子的表达载体转化的重组微生物可以在其表面上有效地表达靶蛋白质,因此可用作疫苗载体等。
摘要:
Expression vectors are described that can efficiently produce virion capsid protein, tumor-associated protein of human papillomavirus on a microbial surface. Bacterial strains harboring such surface display vectors, and the use of the bacterial strains or their extracts or purified products as complex vaccines, are also described. The surface display vectors contain one or more than two genes selected from among pgsB, pgsC and pgsA, encoding a poly-χ-glutamic acid synthetase complex (pgsBCA) of a Bacillus sp. strain, and genes that encode virion capsid proteins, tumor-associated proteins of human papillomavirus. Methodology for preparing the foregoing vectors, vaccines and transformed microorganisms are also described.
摘要:
The present invention relates to a fusion protein in which a myostatin mature protein is fused to a multimer of myostatin-derived antigenic peptide Myo-2, a surface expression vector containing a polynucleotide encoding the fusion protein, a recombinant microorganism transformed with the vector, and a feedstuff additive or a pharmaceutical composition containing the microorganism as an effective ingredient. The feedstuff additive or pharmaceutical composition according to the present invention can be used for muscle development and regulation of muscle growth in livestock and poultry, as well as for preventing and treating muscle-wasting diseases and degenerative diseases such as muscular dystrophy, muscular atrophy and the like. In addition, the transformed strain shows the same effect even if the strain itself after culture thereof is directly used, and thus it is very economical.
摘要:
The present invention relates to an adjuvant composition containing poly-gamma-glutamic acid-chitosan nanoparticles and a vaccine composition containing the adjuvant composition, and more particularly to an adjuvant composition containing nanoparticles prepared by ionic bonding between poly-gamma-glutamic acid having ensured safety and chitosan, and a vaccine composition containing the poly-gamma-glutamic acid-chitosan nanoparticles and an antigen. The adjuvant containing the poly-gamma-glutamic acid-chitosan nanoparticles has little or no toxicity and side effects and is added to human or animal vaccines for the prevention and treatment of viral and bacterial infections and cancers to increase the production of antibodies.
摘要:
The present invention relates to a new microorganism Weissella cibaria BLS13, and more specifically, to a Kimchi-derived new microorganism Weissella cibaria BLS13 which activates an inhibitory effect on avian influenza viruses, and to uses thereof. According to the present invention, the Weissella cibaria BLS13 or a culture medium thereof contains a substance having an anti-viral function, and thus can be used advantageously in feed additives, fermentation products, foods and medicine.
摘要:
Expression vectors that can efficiently produce virion capsid protein, tumor-associated protein of human papillomavirus on a microbial surface. Bacterial strains harboring such surface display vectors, and the use of the bacterial strains or their extracts or purified products as complex vaccines, are also described. The surface display vectors contain one or more than two genes selected from among pgsB, pgsC and pgsA, encoding a poly-χ-glutamic acid synthetase complex (pgsBCA) of a Bacillus sp. strain, and genes that encode virion capsid proteins, tumor-associated proteins of human papillomavirus. Methods for preparing the foregoing vectors, vaccines and transformed microorganisms are also described.
摘要:
The present invention relates to a surface expression vector of SARS coronavirus antigen containing a gene encoding an antigen of SARS inducing coronavirus and any one or two or more of genes pgsB, pgsC and pgsA encoding poly-gamma-glutamic acid synthase complex, a microorganism transformed by the surface expression vector, and a SARS vaccine comprising the microorganism. According to the present invention, it is possible to economically produce a vaccine for prevention and treatment of SARS using a recombinant strain expressing an SARS coronavirus antigen on their surface.